What Are The Ill Effects Of Overdose Of Medicine?

Hhio, nmay I answer your health queries right now ? Please type your query here...I will be honest. I have loratab for firbromyalgia and then another prescription for loratab because I threw my back out. Unfortunately I like the way they make me feel. I know I have been taking too many. Yesterday I took a total of 6-5mg. tablets. I felt nausiated bad. I decided right then to call my dr. and tell her not to prescribe them anymore and I did this morning but I still feel sick. Did I overdose and how long will the nausea last or maybetoday it is withdrawls. I've been taking them for about a month and a half.