delicto

Hey, I am studying sports and it does not suprise that you getting fast fatigue as bodybuilder if you play fps games. If you want to work on this you have to train different like a body builder would. It is not about to give up your amateur bodybuilding. It just would be usefull to train also around that. But still you will have more problems than other players. Since you have more muscles you also use more muscles wich is making you faster fatigue. That you can hit alot of shots in lets call it "slow combat situation" is understandable since you have a low sens. And also that you have a harder time in fast combat situations. For fast fps games it makes allways sens if you can handle a 180 without feeling uncomfortable. In some games it might be not really neccessary to go with a high sens since you never really have to turn around (... I mean if you have to you probably dead... for example csgo). You might feared that your aim will be off if you higher the sens but this is actually wrong. Its allways possible to get a good aim on a higher sens specially when you playing on low sens. It might need time and also depends on your practice plan. It is most likely the same as in bodybuilding. I am pretty sure you know very well if you have a good training plan you reach your goals faster than without a trainingsplan. And as you probably know, alt of peopel never get the muscles or reduce the fat they want because they dont follow a trainingsplan or a nutrition plan. For aiming you need a good reaction time, hand eye coordination, hand-, armproception, eye tracking and mental strength. If you train this you can also go with a higher sense were you feel more comfortable but it might be very frustrating in the beginning since you need time to get back to your old skill level.

The amount of what you should drink depends mainly on your body weight and how intense and long you do bodymovements/day. 1 l Water sounds a little bit less to me. But I got no idea how much soy milk you drink. A good calculation is to multiplicate your bodyweight with 30 to get the amount of what you should drink in ml. For example; your weight is 50 kg: 50x30=1500 ml . That would mean you have to drink 1,5l per day. If you got a really hot day you should drink 0,5l more and you also should drink 0,5l more if for 1 hour exercises (gym, running,... whatever). Water is not known as a good source for vitamins. You mainly get thoose from vegetables, fruits but also from meat and corn. If your hand feels like you described you may could try some warming up exercises for your hands and your arms. There is a lot of stuff on you tube. Just simple games / tricks with your fingers. If you still do not have any benefit you probably should go for a doctor.