Hi there Cheetara :-)
I'm regarded as someone who has a good track record of complying with treatment, but can identify with what some others have written. I have refused to take medications that have caused intolerable side effects - the first antidepressant/anti-psychotic combo I was prescribed, for instance, and the first medication I was given for pain control. As you become more experienced with doctors and specialists you do learn how to 'refuse' without it looking as though you're just being awkward, putting it along the lines of 'this really isn't working for me, is there anything else we could try?'
I have experienced 'help' from well-meaning but misguided people, especially with regard to having ambulances called when I'm having a panic attack. It's not often possible to convince people that I'm not dying, it just looks (and indeed feels) as though I am. Sometimes shop managers or assistants feel the need to call an ambulance 'to be on the safe side' fearing that they or their company might be liable if something happens to me on the way home. That's understandable, but annoying.
As for using mobility aids, I am happy enough to use crutches and a scooter, but felt very apprehensive about being assessed by my local wheelchair service. It wasn't that I don't want a chair - ending up in casualty 3 times in as many weeks because I'd fallen indoors and hit my head was all the convincing I needed, but I felt guilty about possibly getting one from the NHS. I kept telling myself that I wasn't disabled enough to warrant NHS help, and that I should try to buy a chair myself. My GP was very good about telling me that if I really 'wasn't disabled enough' the Wheelchair Service wouldn't even have agreed to assess me.
I felt the same guilt about applying for DLA, and got the same response from my GP - that if I didn't need the help, there is no way that she would support the claim, and the folk here had to talk be into applying for the Severe Disability Premium, as I had the same feeling that others need the help more than me, and that I'm not really worthy of it, so despair and a sense of worthlessness can be involved in the apparent refusal of help as well.
That was all a bit rambly, so I hope it made sense!