First of all - How fab are you coming here to find out about her HMS, and what you can do to help! I think you're great!
It's hard to advise you, as I don't know you or your girlfriend, but I can tell you about my boyfriend - he is fantastic, and my experiences.
I've had all kinds of issues on top of my HMS, which is mild in the scheme of things, but it does have a large effect on how I run my life. When I first found out it was fairly shocking and overwhelming. I really struggled for a long time before I started to make the changes I needed to in my life, I changed very slowly, I couldn't have done it quickly. I do feel a lot more in control now I know lots of different exercises, and I'm getting a bit better at pacing myself, and I've accepted some limitations to my life, for example, I will never work full time again, it just takes too much time and energy, and I need a life outside work, hobbies, and time with friends. This may not be the same for your girlfriend, but she will need time to come to terms with it.
My bf is fantastic. It's like he was brought up to be my perfect man without his parents knowing me (I have thanked them for this
) The biggest thing for me is how he accepts how I feel, and what I say, he listens and tries to understand. He always says he doesn't understand, but actually, I think he does more than he knows! He respects and accepts that sometimes I get scared, sometimes I get down, and sometimes I get over-enthusiastic and try to do to much. This is all ok by him, I set my own limitations, as they seem to vary quite a bit, he respects that, and helps me deal with the consequences. Occasionally, I'm seriously lacking in a sense of humour, and he helps me laugh at myself, but stops if he sees it's too soon for laughing!
He treats me like I'm normal, because I am, despite HMS and history of mental illness, what is normal anyway!?! When he helps me physically, usually with carrying heavy stuff, he does so in a gentlemanly way, rather than a 'Ooh, you shouldn't do that' way, which is lovely. When I'm in a lot of pain or over-tired, he does a lot more for me, making dinner, getting drinks and generally doing the jobs that I normally do.
I just asked him about your post; first he said "Tell him to get another girlfriend"
but then he said "Tell him just to try and help her however he can"
That's all you can do really, listen to her, let her deal with it her way, and just try to be there.
Hope I've not waffled too much!
All the best to the both of you