Congrats on giving it a go!

I don't know what your back story is, but you mentioned chemo...

Sigh... I have been there! Cervical cancer in 01. I didn't have to do chemo, but they gave me a drug that acts a lot like it.
I ended up with sores on my legs. My doctor explained it to me as a burn from the inside out. FUN.

And I gained a TON of weight from the regime. UGH! Of course part of it could have also been depression.

And I was training for and running marathons at the time. It was a struggle. But I did it, and I know you will too!
Just know that someone else has been in the same spot you are now. It does get better. And the most important thing is to keep living life the way YOU want to. Do not let an illness dictate how you go through your day.
Best of luck to you!
Denise