Hi LauraJ,
Welcome to the Forum.
My Son (29) is an addict and has been for over 10 years, he is doing ok at the moment, but constantly living on egg shells is not ideal.
If I’m honest, I would have to walk away from the situation that you are in at the moment, because unless he wants to stop, he’s never going to change. As you said they change when they are taking the drugs and they are not very nice people to be around, then when it has worn off they do nothing but sleep and be miserable. It is also a very costly habit.
Sorry to be so blunt, but it is very draining and heartbreaking being involved with an addict.
Taking care of you and your anxiety is most important.
Keep in touch and know that you are not on your own.
Take care.
Dx