You're right that this isn't really a topic we're supposed to go into here, but I'm going to move it to medical and ask that folks don't go into any further detail about pill names and such and see if we can at least get you some feedback.

You mean you're going to trade weed so you can take more pills? Or you're going to try and switch back to weed and get off the pills?

Get off those pills. Seriously, your friend was right. And the fact that you're already jonesing for more means you've triggered your addiction genes already. Those medicines are highly addictive. And if you're wise, you'll endure the moodiness and short-tempered periods you're in now and get past that and leave that crap alone. Don't buy or sell them. Don't take more. Tell folks around you that you need them to keep those things away from you and behind lock and key.

Addiction doesn't generally get better on its own. Ever watch the show "Intervention" on A&E? Check it out and see what happens to those pill folks down the road. You're risking your liver, your brain, your sanity, your budget, your freedom, and your future. If you keep taking them, you'll simply begin to require heavier doses and feel worse if you try to stop. Somewhere down the road, maybe if you're lucky, someone'll get you into rehab. That's why it's better to stop now.

It's important that you look at why you feel the need to take something to get "messed up." A recreational high from weed is one thing. But taking highly addictive painkillers is getting into another area entirely, and weed, as you know, isn't going to hook you like painkillers will. You already know this is the beginning of a potentially serious problem or you wouldn't have posted this thread. That recognition is the same thing as taking Step 1 in the great drug/alcohol addiction heirarchy--admitting you have a problem. Now it's time to look at doing something about that problem, and if you need to go to 12 step meetings while you're going through the detox part of withdrawal and getting back on your feet, do that. There's help to be had, and it's better if you get it sooner than later.

Seriously, get off that crap. You're not looking at a happy outcome if you keep that up. You already know this.