Do I need to go to a doctor?

For about 4 months now.... I've had an excessive migraine, in the same spot on my head. Also, I've had increased urination, at least once an hour. Even if I haven't drunken anything all day. My joints pop practically every time I move. I feel dizzy very often. I also got a horrendous cough a few days ago. I don't know what going on... but it sucks. Please help.