Hi, !
I'm sorry I can't offer any personal input on this topic. I know the links I'm sharing might not be exactly what you're looking for, but I wanted to share what information I could dig up on the topic of MS and cancer treatments. Here's one conversation from our forums -- https://multiplesclerosis.net/living-with-ms/how-i-manage-cold-weather-symptoms. Also, these are some older conversations I found on a different MS forum, so the information shared may be dated, but I thought you might find some of the comments helpful -- https://forum.mssociety.org.uk/t/ms-and-breast-cancer/80384/4. I know potentially facing even more fatigue from treatment is, well, discouraging, to say the least. I do hope that someone here can relate or that either of the links I provided at least give you some new paths to check out in regards to finding people who might understand what you are going through.
Best, Erin, Team Member.