Hello Lisa. Retirement does taking some getting used to it. The good news is that .you can plan not to be outside during the hottest part of the summer day. As for that sluggish feeling, I have an underactive thyroid gland for which I take medicine. The blood test now show my readingsgs are normal, but I still have nails that are brittle and break easily and I'm tired anyway.
I hope you are having a nice afternoon. Its 92F here but the humidity is awful. We are usually not this humid. Enjoy the rest of your day and evening and take care. Hugs to you.
Thank you for the lovely birthday wishes. l had a great day with friends driving round the coast and then being treated to a delicious meal out. Would love more days like that :-)