I don't drink energy drinks. Too much caffiene. But I do know people who do. If you can't tell if they are working, then they probably aren't. Especially if there are herbs in them. They either work for you or they don't. Be careful. People have had heart attacks from them. And strokes. That is if you drink too much. But I don't trust them. I have never tried them though. So I can't be the judge of them. I hope that you feel better soon.
I use to drink that Arizona Tea with Ginseng in it. Tasted good. I drink plenty of Pepsi though and coffee. Also take adderall for energy. Maybe you should talk to the doctor about trying it. It works far better than any drink could. Best wishes...
Hugs, Karen