Lean on your friends, too. If you're depressed, talking to your friends is just so important - even if you don't want to talk about your problems, hang out with them and try and have some fun. If you don't feel well enough to go out - suggest a sleepover, or a movie night at someones house - anything that means you're having fun and socialising.
You should talk to your boyfriend, though. Meet up with him and see how it goes - if you break up with him without giving it a chance, you'll regret it, whereas if you at least give it a go, you can walk away feeling proud that you at least tried to make it work.
Good luck!
Of course, this choice is yours... if you can not handle a relationship at this time and it is causing you more stress, then it may be best for ~you~ to break up, for ~yourself~. This is how I view it.
But again, you know youself and him better than I do... but I've had thoughts about breaking up for my boyfriend to "spare him of pain", because I thought that I was hurting him more than anything... but I also can acknowledge that these are his choices, and that if he chooses to stay with me, that's something he decided... and that if I try to "Spare him of pain", I may actually cause him more hurt than I may ever know.
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That's my view of it, maybe it makes sense, maybe not. But if you do decide to see him, just call him up, tell him you're on crutches, and ask if he'll mind. Communication is key in any relationship, whether it be between friends, family, or a boyfriend/girlfriend. How he responds to it is not in your control, but you can at least let him know before hand so he gets the time to think to himself about how he truly feels about all of this...