Hi everyone

I want to discuss a strange problem that i am facing over time from last one year, but let me go into a bit details when this started to happen specifically. It was almost a year ago, when i had some friends who used to take some party drugs. Once they offered me to do the same and i didn't refuse for this. It was ecstasy (MDMA) on one night, then again on the next night. These were 2 tablets on the whole, one on each day. It went fine and i became normal afterwards and never took it ever again. I didn't want to do it again because i felt as a vague idea that i was going very down after a peak and i felt it severely depressing with everyone, as that was my first experience and became a bit embarrassing so i thought to give it up.
Now it's over a year that i get strange kind of hallucinations kind of thing. Let me explain it. I am sitting with some friends, talking on general things and i am sitting quietly and hearing their points and then i get a point to talk and i start talking. Suddenly i feel that i was talking something but my mind was paused for a second, and my conscious was not with me. Let me explain it from a scale ( -1,0,+1 and i take -1 as mind lagging, 0 as normal and +1 as hyper phase). When i am talking i feel for a moment or two, i was at -1 and when i realize that i was at -1, i am coming towards 0 but slowly, not at once. The time of coming to 0 from -1 phase is of few seconds.
This has been happening to me from a long time.
There is another thing, when i am talking something and i know that everyone is listening to me. I start feeling that UNCONSCIOUSLY i am doing some funny acts (like under the effect of MDMA people do) that is becoming funny for people and they are smiling at me but not letting me feel it. This has become very common to me. I start feeling this quite often except that i am walking and i am totally in my senses, else than that when i am sitting and i get this kind of feeling which i explained above.
I am confused about whether it is the effect of that MDMA using or is it some other psychological problem going on with me? Please help me.