Zyrtec and heart flutters

I love the fact that Zyrtec works wonders for my allergies, but not how it makes me feel. It effects everyone differently that is for sure.
I have been severe with my mood swings and soooooo tired even if I have taken it at night. I can't recall any weight gain over the past year because I have been on a diet. I have had the heart flutters, nausea and dizziness. The worst I can say though is the aggressive behavior, very easy to snap and crazy thoughts. This is not good when you are a stay at home mom with a 3 year old and 1 year old. I have recently taken myself off of it and feel happier and so do my kids. If you or someone you know has to take it please take notice if any of these side effect occur and switch meds. It affects not only you, but the ones you love around you.
I would rather sneeze.
As for withdrawals; I get severe headaches, sleeplessness, and itchy.

Is any one having menstrual problems? I have had a lot of cramping and little to no flow-which is unusual for me-I feel like I am constantly PMS-ing
and I want to eat all the time! The allergy problem is gone but my ovaries
are killing me and Im gaining weight!

I took Zyrtec for a few years for severe mold and pollen allergies. I loved the drug as it controlled my allergies much better than Allegra or Claritin. However, I recently stopped taking it after realizing it was causing dizzy spells, drowsiness/constant tiredness and heart flutters. Since I stopped taking it I have lost 6 pounds without making any alterations to my diet and exercising less than normal. This leads me to believe that my weight gain of 30 pounds in the last few years was also part of zyrtec's side effects.