man you gotta get off tha dope. i may have taken a couple 'mood enhancers' back in the day...definitely fucks with you for a good while if you take them in close succession. while no one can seem to come to a conclusion about the physically addicting effects of that specific drug, it's definitely psychologically addicting, making your peaks (on the drug only) extreme and the valleys (off) awful. coupled with a loss in the family, should probably ease off the sauce for a while and let your brain heal a bit and restore stable amounts of serotonin.
just drink more