I'm with waren9
I recently went through something similar. You have taken the first step. You need to get it out and verbalise to somebody. I was head in the sand thought I could tough it out, in the end it just makes it worse. Have a rant about the cause of your stress unburden yourself.
I went sick for one trip cause my head was definetly not in the game. FWIW I find exercise is great, have a swim in the surf if you can. A mate took me gliding greatest flying I have ever done and absolutely recharged me.
I have also taken a break from the grog and am losing a few kilos with exercise, I feel great. Although I expect to give it a small nudge watching the Wallabies this week lol.
Hang in there