Happiness

I got disabled from working 3.5 years ago due to moderate-severe ME/CFS. Despite this, I am generally happy now. I don't leave my house or talk to any friends or work at all. I just watch Twitch/YouTube streams online. I'm afraid to tell people that because I feel like they will think I am faking being ill or that I am better. It doesn't make sense that I am happy. I fear doctors or people will think I am choosing to be ill and that my ME/CFS is psychological because I am happy. Maybe this emotion will flee over time but I am having trouble making sense of it.