Could you tell me if i was having a kidney issue what would be the symptoms?

None until BAD: Most patients with kidney disease have no symptoms until their renal function is very low (15% or less). At that point the poisons that the kidney typically clears can cause "uremia" in some patients. Typical symptoms are nausea, vomiting, anorexia (lack of desire to eat), metallic taste of food, tremor, mental fogginess, loss of sense of humor, fatigue and weakness.