Sulfamethoxazole and basicly

I started taking sulfameth for a unknown spider bite first couple of days were fine, so I thought. I was very itchy (whole body) bad dreams mainly about giant spiders. Not hungry at all, and very tired my legs were in so much pain I basicly laid in bed for the whole five days I was prescribed the med I didn't associate any of these symtoms with the sulfameth until I researched it on the internet. I finished the med yesterday, but my hands and feet still itch like hell follow up appointment is tuesday hopefully doctor give me something for the itching.