It's my birthday this week (47) and I am having the same issue I have every year with everyone who wants to buy me something. I struggle immensely with receiving gifts, mainly because I don't feel I don't deserve it, secondly I can't afford to reciprocate the gesture when it's needed, plus I really don't need or want anything and it's NOT that I am ungrateful I just feel really awkward.
I understand the generosity of others and I am flattered and blessed they want me to buy stuff for me, but I really feel crappy accepting it, it's definitely a me problem. For example, every year my mum will ask me what I want and I will say nothing, because I have everything I possibly want.
Yesterday I had my sister call me and say 'we're (her and my BIL) giving you £50 this year, what do you need/want?'. My initial reaction was 'thats really lovely and so generous but that's too much, I can't possibly accept that', they said they really wanted to, but still £50 in my eyes is a lot of money, which I can't accept.
In ALL my previous relationships I've struggled accepting gifts. I would much rather someone's time or a phone call.
A good male friend of mine asked me what I wanted and again I said 'it's really kind of you but there's nothing I want'.
I do hate being like this, but it's a massive cause of anxiety for me around 'gift giving' time and I realise some will think I am rude for not wanting to take the money/gifts because it's what they want to do for me, but it really is a huge anxiety creator and I don't want to feel even more shit on my birthday - I'm already dreading the day itself as it is.