Sir my age is 21. I doing gym first time only after 2 days then my urine colour is dark in colour but at that time I cannot drink water that day too much only 2 glass but after that 2-3 times urine colour is like black I feel tensed but after take 2-3glass of water it become normal. Net shows many different things like rhadoetc but I have only pain in arms it is due to doms I think but there is no. Swelling not other symptoms only one to two time urine colour like coffee after drinking water it is clear in colour so what I do I continue gym or not is it normal then or not?