Macrobid and extreme body

I started Macrobid last Tuesday coupled with Perks for the pain. I have finished the few days of perks that I was given and have started noticing severe leg pain and insomnia ( I cannot sleep due to extreme body pain and sweating.) along with sharp pains in my stomach and very loose stools. Im calling my Pharmacist tomorrow to see what he says. After reading what everyone else wrote, Im starting to get scared.

I was prescribed Macrobid for a UTI I didn't even know I had. I toke my first dose on Sunday night, and woke up with severe flu like symptoms. I never call out sick at work. (once in 10 years) To day is Tuesday and I still feel so bad, extreme body aches, pains, dizziness, lack of energy, sneezzing, coughing, mucus, cannot sleep. I called my doctor immediately...my Dr. is on holiday, and no response from another physician. I am going to immediate care and stop taking Macrobid before hives and rash set in.