Is it okay to feel lightheaded and dizzy after physical activity?

1) When I do a 3-mile or 5-mile run, I run for time and try to finish with nothing in the tank. The closer I get to the end, the more I push myself, because I know I don't need to sustain the effort much longer. When I stop running, I suddenly get very light-headed and dizzy. It never happens while I'm running. I walk briskly while I'm warming down, but that doesn't prevent it. Why does this happen? Is it dangerous?

2)  Sometimes after jogging a while, or cycling a great distance, my head begins to spin and I feel as if I'm going to pass out. Is it normal to have feelings like these, and if so, how intense should these feelings be?


Can our relationship survive summer break if we haven't had sex yet?

I am a 19-year-old college student and am seriously involved with my boyfriend who is a 20-year-old college student. We have even talked of getting married someday. Our relationship is very close and we talk about everything, and he is very wonderful and supportive. I feel very committed to him and would really like to have sex with him. We have tried twice, but it hasn't really worked out because my vagina is too tight. I am pretty sure the problem is just that it needs to be stretched more, because I have been to the gynecologist and don't have any infections. He says that he is okay with whatever we do and that he loves me no matter what, but I still feel guilty about not being able to go all the way. How do I get over this guilt? I will be leaving college for the summer soon and we will be separated for awhile and I want to make sure that our relationship is as solid as possible before I leave so we have the absolute best chances of surviving the summer!


What is pre-orgasmic?

1) I know this may seem like a strange question, but what exactly IS pre-orgasmic? Does it mean that a person hasn't yet had an orgasm, or that her body isn't ready yet? I remember reading in one of your answers that many women under the age of twenty are pre-orgasmic. Why is this? Also, what is/are the purpose(s) (besides pleasure) of orgasm in women?

2) Hi, I'm not from the USA, so you may call me "the foreigner boy." I'm a 20-year-old male... I have had a lovely, nice, 19-year-old girlfriend for the past two years and I love her very much! We've started making love after six months of being together. We’ve had oral sex since the very beginning of the relationship. My girlfriend was a virgin before we met and me too. The problem is this: She never reaches orgasm! We really did try it all... it's very disturbing because she doesn't understand why I think it’s a BIG DEAL! And I really want her to have orgasms, but she just can't reach it... We really did try it ALL!

She tried to masturbate alone a few times and still had the same feeling... It’s not that she doesn't have fun, but she never really reaches the Peak! It seems as if she is stopping herself from having orgasm. Any secret I haven't read or heard about could be helpful! Thank you for your time!


Why am I getting nauseous when I'm weightlifting?

It's been about three months since I worked out regularly. I find that lifting for strength (i.e. 80% of max for 5-8 reps) causes me to feel nauseated about 3/4 through the workout sometimes, so that I can't bring myself to finish. I took a weight training course last semester and was affected the same way every once in a while. I warm up, stretch before and after, breath when I lift, drink plenty of water, take care not to eat 1 hour before working out, skip a day between workouts, don't lift more than I can handle (I reduced the weight from what I ended on in the class to a seemingly suitable weight. I got a 98 in the class incidentally). What's going on?


Is it possible to pass drugs through semen during oral sex?

I recently performed oral sex on a guy who had been using crack cocaine. He had been using for about three days straight. When he climaxed, I swallowed his semen and about ten minutes later, I felt very dizzy and pretty much high. He probably ejaculated about two to three tablespoons worth.

Is it possible that the hardcore drugs he had been doing that week pass through his semen? If so, does this happen with every drug?

And, if so, if I were to get drug tested, would it show up?

I would appreciate any answers you can provide.


Is soreness an indicator of a good workout?

My trainer is getting annoyed because I am not experiencing soreness. I have been working out now with him and other trainers, three times a week, for three months now. Plus I do 45 minutes of cardio four times a week.

I think it's kind of odd that he bases his progress on how sore his clients are. I was always led to believe that soreness in muscles comes from working newfound muscle groups or aggressive workouts. During our workout I am feeling my muscles being worked and I have lost a number of inches and lbs since I have been working out. It seems to be a large issue with some of the trainers at this gym. I am wondering why! Also he had me doing 420 lbs on my legs. I am not a body builder nor do I want to be. I started to tone up. Advise please!