Saw your other thread on plastic surgery and thought that might be the case.
I started off a bit fvcked up about the way I looked. Half my energy went on what others where thinking about me, worried I'd embarrass myself. Consequentially I'd fvck up.
Then it became a good excuse to become a semi-hermit.
I have/had a huge amount of tension build up in my muscles and spent alot of time feeling very tired.
I'm still a bit this way, however bizzarely I've made huge strides in confidence recently, I can do approaches and C&F with great panash.
Check out a thread on Avpd, this may be relevant too.
Here's some things I have banged into my brain.
There is no point in giving a sh1t what other people think of you.
The only way to make progress is social exposure with the above mindset.
Reduce physical tension through Tia Chi, Qui Gong, yoga combined with general exercise.
There was a thread a while ago on anxiety. Someone recommeded a link to The Lynden Method. I bought the stuff and it helped me alot also. In the UK they also send the CDs and give you a quick call.
It has helped people with very severe social anxiety and may help you.
I suspect feeling tired is one thing, but it's quite another to not do things in life you want to do, but are too fearful to try.
Good luck