I've only had to deal with this for a few years now but I've had the same thing happen to me. I've become withdrawn and I'm just in my house alone for most of the year really. I think it's important to reach out to people and say "Hey, why don't we meet up for a coffee?" or similar, I know it's tough because we aren't always well enough to do that, and symptoms can be unpredictable, but getting out of the house is so important in my opinion. Or even ask them to come around to your house, maybe think of some group things you can do at home that don't require too much movement, maybe like a movie night? I have a cat & I think that without him I would be completely lost! Sometimes when I'm just too sick to see people he is always there no matter what, always makes me feel a little better but it doesn't even begin to replace human interaction. I think we can get used to not seeing people and it becomes our 'normal', but in my opinion it can be really detrimental to our mental health. Keeping yourself busy is good too, I know that when I can't see anyone (due to them being unavailable or such) I try to find something to occupy my time with, then substitute seeing them in person with a phone call or something like that. Do you have any hobbies or interests right now? I love dressmaking but these days I just can't sit up long enough to actually make anything, so instead I look at patterns and clothing that I might like to make in the future instead, anything that occupies time more is great.