I recently was diagnosed with heart problems probably from Methamphetamine abuse for 20 yrs.. I quit smoking and have been weaning off of Meth. I use maybe two days a week now and only have a few hits off a pipe when I use. I m fully aware I need to completely stop and I am really trying. But lately I ve been having what seem to be panicked attacks or anxiety around bedtime a lot. I can feel them coming on even. I also have sleep apnea, but I m more concerned about this anxiety thing. I have trouble getting to sleep and about every ten minutes this happens. I literally have to get out of bed and move around to calm down, but as soon as I try to get back in bed it happens again and continues on every ten minutes or so all night. Why is this happening?