Very less urine passed. Thigh and waist.

I'm suffering from an issue since 2 yrs that is when ever I pass urine it would end for very short period and sometimes I feel like to piss but when I try to do so nothing comes. I do not have any pain while passing urine also when I drink water for at least 3 ltr a day I pass a transparent urine and that also ends very soon this has made me go to toilet often. My colleague told me this is an unusual behaviour. I'm suffering from male pattern baldness and I'm under medication to control that I take Dutastrass and Juene tablets everyday, is that affecting my body also would like to know is that tablets harmful for me in long term. Please help me with this I'm really worried about this unusual behaviour of my urine system also I'm not sure what made this changes in my body. I also have very large lipomas all over my body, if operated I may find around 10 small lipomas over my abdomen and few large a size of a lemon lipomas on my thigh and waist.