Keep going, Lauraelmore, it will get easier.
I went to spin class Friday and today I did a short, 18 mile ride with DH. We worked at the condo all morning, doing the hardest part of putting up the Swanstone walls in the bathrooms. A 2X4 kind of fell and grazed my forearm (I was holding it all together, while DH put up the wood for bracing, so the Swanstone adheres to the wall). I am not injured, but a little sore. DH is very sore from lifting these huge pieces and doing all of the other work. But, it's 55 degrees out. Was 52 when we started and cloudy and windy. The sun came out, and I was overdressed, so I ended up taking my headcover off, which cooled me immediately! I felt really good riding, but DH was toast, so we came home.
It feels like the end of March or April out there.