That could very well be. I read that people develop what is called skeeter syndrome (which is what I'm dealing with) when they visit different countries, because their body hasn't developed immunity to the mosquitoes in a new location. I've always gotten bit way more than my husband, but never had this kind of reaction. My kid's would swell up when they were younger, but grew out of it as they became more immune to the bites. The only thing I can think of being different for me now is having had the Covid vaccine & having a strong reaction to that. I will probably never know for sure. I can't sleep because of the swelling and itching, I've taken Benadryl & rubbed cortisone on it, but I haven't gotten much relief. I'm currently icing my hand, which makes it feel better, but once I remove the ice it starts driving me crazy again...oh well...this too shall pass...lol!