I had exactly the same experience over the same time period. Even waited a year and tried it again, same thing. Also started getting nasty side effects (dyspnea

I had exactly the same experience over the same time period. Even waited a year and tried it again, same thing. Also started getting nasty side effects (dyspnea). Wasn't aware of any other drug that acts this way so i'm glad you made this comment because i've always wondered if it was the drug quality changing over time or if it was my reaction to the same drug.