I hate it here (not being high)

I’ve been using every day for 9 years (29) just about, with occasional ~2 month breaks. I’m in another country without access to weed. It’s been two and a half weeks and I feel terrible. Constant headache. At night, I can’t sleep. If I do sleep I have vivid nightmares. The days aren’t much better. I feel constant foreboding, like something terrible is going to happen. I cry a lot. I suffer a constant and overwhelming onslaught of thoughts all the time, which are almost all very negative. I don’t enjoy anything. I’m often extremely angry. I developed a new nervous tic of pulling my eyebrows out. I wish the summer would be over and I could go to work again (I’m a teacher, on summer vacation). It was like this last break I took but far less intense, and I fell back into smoking (a gram of pen a week). Has anyone else experienced anything like this? Did it go away? Did anything help?