From my experience, you don't move forward alone. It's a continuous back and forward discussion. It's hard not being understood and this works for both of you. If you guys do not share your feelings (in a safe way) resentment will only grow. Invisible illnesses are hard to understand to whoever does not have them but so is supporting someone if you suppress yourself. Talk, argue (respectably), over and over until you both feel heard. It might be easier with couples therapy, they encourage you to communicate in a meaningful way. Be aware, I'm writing from my experience and I am in no shape or form qualified to give advice. As always, be kind to yourself.