Hello! Sorry to hear you’re about to start chemo, but I am the same as you in the sense that I’m always the brave one that doesn’t show much to anyone else, as I don’t want them to worry (this is in all scenarios!) I think what we have to learn is that it is perfectly ok, and normal to show emotion- you’re going through a tough time and it may be nice for them to be able to show you support, like you would them. 

Good luck. If you need to cry, moan, laugh, shout.. do it. You’ll feel better, and people close to you will be more understanding of your current feelings xx