I was given this medicine for a UTI on Saturday. Only 6 pills, tw...

I was given this medicine for a UTI on Saturday. Only 6 pills, twice a day. From the 1st day I started feeling very weak, rashes and pain on my body, stomach cramps nervousness, head aches, loss of appetite, nightmares, sore throat, sores on my tongue, mood swings. I took the last one yesterday morning and today I still feel very sick and the side effects are just getting worse. I can not believe I wasnt told the side effects of this medicine. I never in my life (30 years) have experienced a reaction like this to ANY medication. I can not belive this was approved to be sold.