Hey Mommydancer!
Oh my dear, your reactions to the Allegra and the Zyrtec sound just like me! I have tried these two drugs so many times, and I always get the same thing, even when I cut the dose down. They are just too strong for me. I am a real medication LIGHTWEIGHT!
Allegra makes me feel like I am having a shock reaction (even though I am not) and my arms will go numb from it. The Zyrtec knocks me flat like I had anesthesia (even a toddler dose). Everybody tolerates meds differently, so you kind of have to work around your own body.
I have found that the only thing I can tolerate is Loratidine (Claritin). The only one that really works well for me is the Member's Mark Brand from Sam's Club. This is good because you can get a year's supply for only $12-$15
I can not take a whole pill at once, or I feel way buzzed. So, I cut it in half and take half in the morning (7 AM) and half at night (7 PM). Don't take it too close to bedtime or it might keep you awake.
This is the only thing that does it for me, don't know why. If I get a masto attack then I have my Benedryl and epipens for backup.
Just hang in there. Almost everybody who has this disease has to find their "
magic mix" of meds. That is basically an annoying ordeal, but once you do, then you start to feel better.