I Was Peeing Alot Yesterday And Then Suddenly I Had

I was peeing alot yesterday and then suddenly I had the urge but hardly anything was coming out yet I felt I really have to go. It feels like the sensation of the pee almost coming out so I go to the bathroom and nothing. Now today it is very uncomfortable I am peeing hut I don't feel it is all coming out. My mother brought over some powdered drink for an infection which is cranberry flavored and I just went pee and saw like a snot like blood thing in the toilet. Shall I go yo a doctor? I also have been sleeping all day and have a headache. Any suggestions?