Do you get much flak from others for your sensitivity to noise?

Some noises bother me a lot. Anything that's repetitive will annoy me to the point that I basically cannot function and get extremely angry, and it only takes a minute or two to get to that level. Sometimes sounds (and not necessarily loud ones) are physically uncomfortable.

I have similar issues with some textures (in food, clothing, etc.) and am very sensitive to smells (the cause nausea and headaches).

All my life I have been told I need to "get over" this, which I have certainly tried to do, but there seems to be only so much I can do about it. People who don't experience this level of sensitivity just think I'm being difficult and that I do this by choice. Frustrating.