It's really understandable because when you work out, your heart is naturally going to start beating faster due to the exercise, whether it be on the treadmill, or lifting weights. Raising the heart rate is normal during weight training, etc... I think what happens is that you start getting worried about if something is wrong or not, and in return, you get anxious and can cause yourself an anxiety attack. Is that possible? Hugs GB

I get anxious at the gym simply because if other people are there I fear them watching me and fear what they're thinking. Could that be a problem you're having.

Happens to me every time. I start thinking I'm going to pass out, and don't want any one to see me have an attack. I try and work through it, but sometimes I leave instead

Sometimes if I'm too active in a day I feel that way. It is completely normal for someone who suffers from anxiety though. Is there anything in particular at the gym that might trigger it?

I've been there. But exercise is important. You may try yoga, leisurely walks, a calm swim, stretching. Just do what feels good to your body.

I sometimes start to feel sick towards the end of a workout , mainly if Im
lifting weights. Ive talked to 3 different docs of different specialties and the only thing they suggest is dehydration, but I know its not that . I sweat more during a cardio workout but rarely get sick from that.
Im wondering in your case if its anxiety. Gyms can be crowded and noisy ..not a relaxing environment.