What I make of them is skepticism that they are really warts. Bumps in that area are often just bumps, not warts. Treating them over and over may therefore not make sense.
Your doctor may at least want to think about removing one to send for pathology.
As to the sensation, I can't think of a reason other than the fact that you are thinking about them and so they're sending signals to your brain. Neither bumps nor warts produce that kind of sensation.
First, thanks for the response. Second, as many here and on other boards I was freaked out after seeing warts, mostly because I was afraid of problems with future relationships as well as previous. But, now from reading your posts, I understand - even if they are warts, that's all they are! I didn't freak out when I had them on my hand as a kid I am not going to freak out now. I will continue with the aforementioned treatment, which by the way, seems rather effective, with NO redness, irritation, mentioned by others.