hello forum! I train boxing, did also a little thai boxing with sparring and krav maga before, but never had this experience before. I just train a kind of fitness-focused boxing as that's my main reason for training, I'm 33 years old so no point in trying to go pro or something But here's my question: Could what I describe below cause this feeling? I'm feeling a bit strange, not really properly dizzy like when the world is spinning before your eyes but still like not totally okay, just a SLIGHT almost nausea and a bit tired. Yesterday (18 hours ago) we did some sparring and you're supposed to go easy on the head, like 50 % punching power. A couple of times I failed to protect myself and got just SLIGHT blows to the head. mostly hooks to the sides, maybe 2-4 times? I mean if I got heavy blows to the head I would suspect immediately that it's some kind of small concussion. I fell once in my bathtub in 2012 and hit the side of my head hard on the metal water tap. then I got a small concussion but only like 2-3 days afterwards. felt very dizzy then, couldnt stand up sometimes....it lasted for a few days. Is it really probable that this kind of slight half-weak punches could cause some kind of feeling like this or even a small concussion? Or should I suspect something else? Like normal tiredness/a little bit sick? Im also taking some medication since a few months. Sertralin, 100 mg per day. But it never made me feel like this before.... What do you think is reasonable? Its not like I suspect I'm in danger -- Im just starting to think if the boxing is worth feeling like this the day after just because of taking some punches. Cause we're gonna spar again and my head will get hit again... thanks in beforehand for your helpful replies!