Heat sensitivity/intolerance

So it is 80 degrees fahrenheit here today which usually would not be an issue for me but today I was too hot and sweaty. I am perimenopausal (49 years old) and I knew that could mess with heat tolerance. What I had not realized until today is that heat intolerance is also a side effect of many blood pressure medicines, antidepressants and allergy meds. And I am on all of those now.

I have just ordered some gadget that is a fan that goes around my neck and can be recharged via USB which seemed worth trying. And of course I will drink plenty of water, and try to stay in air conditioning whenever I can. Any other advice on how to deal with increased sensitivity to heat / higher heat intolerance? It is still early enough in the summer that the worst summer heat here is yet to come, so having some more tips might help me. Thanks!