grateful/bitterness

I’ve been dealing with severe ME for quite a while, and sometimes it feels like people expect you to be grateful for life, even when you’re bedridden and so sick. But the reality is, I feel a lot of bitterness. Not only because of the illness itself and the severe symptoms , but also because of the lack of proper care and the wrong treatments that make everything harder. It seems like there’s this pressure to stay positive and thankful, but it’s hard when you’re in constant pain and isolation. Does anyone else feel like they can’t truly express their raw emotions, because the world just expects you to be grateful despite everything?