i'm not a doctor, and don't intend on being one. i would not advise doing muscle relaxers, but if you HAVE to do them, do them on non training days. there's nothing worse than not being able to realize muscle strain or tendon injuries until a day later. its better to feel what is happening and back off a bit than to not feel it and keep pushing yourself.
maybe it would be better to get on to something more related to stress like xanax or prozac. find something that releases your stress - my g/f is an addict, and my closest family member abused me as a child. what relaxes me is the gym, reading, and coffee shops. if you've already been to the gym, go back and jump in the hot tub or sauna. its not only relaxing, but it will help your muscles recover from a workout - think of it as using a heat blanket for a sore muscle. if you can find anything that will relax you naturally, this is always the best way to go. if that doesn't work, talk to your doctor and see what anti-depressants work best for people with high blood pressure.
lastly, if you're getting "goodies" be careful of addiction, especially with opiates (vicodin, percocet, fentynal, norco). opiate withdrawal is something like 8 days of uncontrollable leg shaking and vomiting. good luck to you brotha.