<human>: My husband and I have been together 5+ years. My birthday is coming up next week and I really do not want to celebrate it. I know that he has already bought me gifts, and he has hinted to doing something with our friends and also taking me out somewhere. I'm going through a lot right now(childhood trauama and family issues which I am dealing with in therapy) and I just don't feel up to a birthday right now. I'm usually not a big birthday person(I don't like being the center of attention), but with everything I've got going on I just really don't even want to think about celebrating anything.

The thing is he seems really excited about my birthday and I don't want to disappoint him. I have already said things like I don't want gifts and that he can just bring me home dinner that night if he wants, but it's done nothing to deter him. I don't want him to think I don't appreciate whatever gifts or plans are in store, I just don't want to end up going somewhere with him and being totally miserable the whole time. I am trying really hard but I just started medication a few weeks ago and I have good days and really, really terrible days. How can I let him down gently about my birthday? And what should I do if he's already made plans that can't be canceled?

Can you condense the text into three sentences or less?
<bot>: I don't want to celebrate my birthday. My husband loves birthdays and giving me gifts. How do I tell him I do not want to celebrate?