It’s winter in Washington and the 60w basking bulb wasn’t keeping the tank warm enough. I switched the bulb to a 75w and a couple mins later I come back to my Cham puffed up and hissing at nothing. It stopped after I turned the lights off. This morning when I turned them back on, she’s in her basking spot puffed up and dark. I used two different thermometers and her basking spot is 86-90. Is this this too hot?? Should I go back to having the basking spot 75-80?