Iae unable to handle hot weather?

When I was younger , if it was warm outside I didn’t really care that much as it meant I was able to play outside and I was ok with it. However, as I have gotten older I can’t handle weather around 22/23* Celsius or above. I get too hot, get really sweaty and my heart races a bit too much like I’ve been working out or 10 minutes. I was just wondering if anyone experiences the same or similar things