An inability to accept criticism?

People have often said of me that I don't take criticism well. I have had a good think about it and it isn't really true. It only happens under certain conditions and this is what I think happens:

Usually it happens when I am trying to do something difficult and someone tries to help. This stops me concentrating on what I am trying to do and I feel I can;t do it, which leads to frustration. Then I start saying "just leave me to do it my way" or something similar.

I think the best example of this is in the band I play in where if I make a mistake and the conductor asks me to play it again, my nerves reduce me to a partial meltdown and I play worse the next time and can get angry. Just left to have a look at it I would be fine, but I am seen as not being able to take criticism and being a bit unreliable.

It's not quite that though, and i wish other people could understand.

Aspergers symptom of the day 30th December 2013

Went to see The Hobbit at the IMAX. The sound was so loud I spent the whole film tapping my feet to distract myself. I should have remembered this from my last visit to the IMAX and taken ear pugs.

Aspergers symptom of the day 22nd December 2013

On the way to mum and dads with their Christmas presents I was pulled up for having addressed them "To mum love Asperscot" when they were supposed to be from myself and my fiancée. Unfortunately my reaction was "but that's factually correct, I bought them".  The truth is slightly more complex, I had been wrapping so many presentes in a short space of time I hadn't put personal messages on any of the tags.

Aspergers symptom of the day 20th December 2013

Today is my last day at work before an extended Christmas holiday.

SO = My significant other

SO: Can I give you a lift to work?
(background: she doesn't normally work near me and would have had to take a significant detour into rush hour traffic to get to my work)

ME: No, I will just take the bus as normal, it takes me right where I want to be.

Of course this was interpreted as me saying that my SO would not take me where I wanted to go. What I meant was, the bus would get me there so there was no need to go out of her way. I also wanted to be in my normal routine during my last day at work. We had a discussion about it and clarified what I meant but it shows how easy these misunderstandings can be.