Based on that you only smoked 3 times and the other meds you are on...its very likely it was not the marijuana that caused this. I use it quite regularly and yeah if I am actually 'stoned' I could easily put the wrong thing on and this and that...but smaller amounts seem to significantly help my functioning. Also though if it was the marijuana that should have worn off after a whole year for sure.

The other posters have good suggestions of talking to your doctor about it and considering that the meds might be having side effects...also klonopin can cause sort of confusion and forgetting things a lot to, ambien I have heard weird things about such as my friend getting up and driving on it and waking up in the morning realizing he actually essentially drove in his sleep, don't know anything about the other medication though. If you are still concerned about having smoked the marijuana though it doesn't hurt to mention it to the doctor.