Suggest Treatment For Severe Hair Loss

I have started to experience hair loss, which is really frightening me. Can you help me?



Around the same time I have developed a small hard lump on my forehead which may be unrelated. I get pins and needles a lot and feel like I have less energy than I used to. I'm a long-time sufferer of insomnia and prone to anxiety; I've been treated for depression in the past. I've been under some stress recently; also, I take the birth control pill and sometimes take antihistamines to try to sleep. I smoke a small amount and probably drink too much coffee and alcohol. I'm normal weight, reasonably fit.