I started using Zyrtec about 8 weeks ago for seasonal allergies, ...

I started using Zyrtec about 8 weeks ago for seasonal allergies, runny nose, congestion etc. It did help but I recently have noticed that I have had lower back pain, feeling extremely tired and irritable. I did not consider these symptoms as being related until recently when I began wondering why I was having lower back pain. Since Zyrtec is the only med. that I have been taking, I decided to do a search on side effects and have read many testimonies like mine. I am a 38 year old female. To me the side effects out way the benefits of this drug. I am not going to take it any longer and see if these symptoms go away.