hello mate,
where as ive never had it that bad i can feel ur pain! i no its easier said than done but you need to overcome this, personally i have ups & downs of my anxiety, i do still find myself avoiding certain situations but never to the extent of not going into work or hiding in the toilets, i will maybe jus take a walk 2 feel more relaxed or avoid certain groups of people & take long routes around them to avoid confrontation.
what you've got to think to yourself is did you get anything out of hiding in the toilets or waiting outside whilst plucking up the courage to go into work? the answer is probably NO! u probably made it worse... rather than standing/sitting there thinikng u were building up confidence & courage to enter the intimidating situation, u were more likely building up more & more anxiety than u had originally which probably made it worse when you finally did enter the workplace, ask yourself another question, after u did enter the situation u were so scared of, was there really anything to be scared of? again... NO! your still alive arnt u lol
i no its sooo much more easily said than done mate believe me but i strongly believe u will get better because i have!
i will ask u to do 1 thing!....
next time you go to work (maybe on 1 of ur more happier days to start with!) try not to wait outside, dont even think them negative thoughts, put ur head up high, maybe whistle a little tune on ur way & be you! just bop into work, say hello to people u no on ur way past with a smile & believe me u'l feel alot better about ur day & if u continue 2 do this... THINGS CAN ONLY GET BETTER!
good luck bruv!