I have had similar experiences. I quit for a few months, about 2 weeks into quitting I started feeling high at random times, then I would lose sense of where my body was in space and time. I would think lifting something, say a cup, would take a certain amount of strength, but sometimes I would apply wayyy to much, or not enough. At one point I felt like my whole body was suspended and my vision had a strange sepia tint to it. I have heard of sensitive people developing allergies to cannabis if used to frequently. I think this is it. I used to smoke about a half eighter every day, started having anxiety issues every time I would smoke. I quit for 3 years, then started again, slowly, until I built up to daily smoking after about a year, than the anxiety, etc came again. I cannot say what is happening with these experiences, but the message for me is usually "It's time to stop for a while"