Recently I have begain taking efexor for depression. This is the first week at 1 37.5 mg pill a day. Also I take remeron at night for help sleeping. Recently I began taking creatine and a prework out supplement to help boost getting back in shape. In the past I have had no trouble with creatine and supplements. Today my urine was a dark brown color and cloudy and also I have lower adbomen crampiing and bloating. Should I be alarmed?