if its about feels and love and stuff like that and you feel like its worth it then yeah go for it.
I have some slight personal experience.
My ex has epilepsy and we could be anywhere and just *blank stare* then boom petite mal seizure. Some short term memory loss...it was the pits. First time it happened she was driving and scooped me up from work and i got in the car and something was off. She knew where she was, but not who I was and not how she got there. For about 3 months after that it would be every 5 days or so another bout of seizures and memory loss. It wasn't until tens of visits to doctors and hospitals that it started to cool out.
But it was a REALLY rough and REALLY emotional experience and i'd be lying if i i said i didn't shed tears over it in private. It felt so unfair, we were about a year and a half into the relationship and it was a HUGE blow to who she was and how she had to live. But it was also draining on myself as well, i wanted to help as much as I could, missed days of work/school, changed my living/eating habits, created a full primer on who everyone was so when she had bouts of the memory loss she could refer to the notes...it was crazy. Its strange explaining to someone WHY other people are their friends and WHO certain people are that YOU barely know. I had to self assess to see if this was something I could live with and I accepted that it was a part of who she was.
We broke up for other reasons, but if its early in the game and you are ready for giving some SERIOUS emotional, physical and mental support. Its best to just stop it before BOTH of you become to invested. Because leaving some one who depends on you in the middle of fighting a very serious disease is prolly one of the most vile things you can do.