Did anyone get tremors, shakiness or shortness of breath while using buspirone?

You need to call your prescriber or pharmacist and make sure you are not experiencing anaphylaxsis or another type of allergic reaction to this medication.
Of course, any medication could have potential allergic effects. And they can occur whether you first begin the medication, a shorttime into therapy, or if have been on for sometime at a therapeutic level.

I never got those symptoms.

Hello, I have never experienced any of those symptoms from taking Buspirone. I have been taking Buspirone for nearly two decades. I will say the symptoms you listed are some of the symptoms I experience when I have heightened anxiety. I especially get shaky and feel I am short of breath, but I’m usually over breathing. We are all different, but I hope this helps. Good luck to you!