Been noticing some foam/heavy amount of bubbles that linger later in day after working out. pee doesnt look super dehydrated but is firmly yellow. drinking a lot of water results in clear pee without any foam. do i need to hydrate better?

Urinalysis: Very foamy urine is usually a sign of abnormal amounts of protein in the urine which is a sign of kidney pathology or certain other diseases. It's reassuring that at times there is no foam in your urine. Nevertheless, for peace of mind I recommend that you have a urinalysis to determine if you have significant amounts of protein in your urine. Discuss this with your MD.