I had severe anxiety and I got through the first week without meds - primarily because I didn't see a Dr.
It wasn't pleasant but then the first week never is -
it was doable Arctic and it got better ...I used SR a lot
Naturally though if you're really concerned, the suggestions here for other medical assistance are sound.
SilentCinemaFan - if your Dr prescribes cannabis after hearing your addictive history, that's between you and the Doc - but I don't recommend it - I got into just as much trouble with weed as I did with booze later.
My drinking problem really ramped up when I self medicated with booze to stop smoking weed daily. It went the other way too when I tired to stop drinking so much with weed.
The addictions feed one another. The propensity for cross addiction is high.
D