Lightheadedness during sport from anxiety?

I sometimes get lightheaded during sport matches and I know it’s from anxiety because whenever I’m doing non-competitive physical activity which is just as intense it doesn’t happen. Is there any way to prevent this from happening?

2020-03-08T14:23:14Z

Some people are saying it’s dehydration, can confirm it isn’t. I drink plenty of water and during training or other physical activity it doesn’t happen, I am 100% sure it’s from anxiety.

science2020-03-08T15:53:43Z

do you get anxiety any other time? if you always feel light headed when you get anxious you should tell your doctor, it's actually pretty common but it is something that needs to be addressed

y2020-03-08T13:42:48Z

I'm guessing dehydration plays a larger role then the anxiety,