Usually withdrawal symptoms
gradually disappear in a few weeks. Since you have been symptomatic for more than three weeks, I suggest that you should see a doctor. He/she will most probably prescribe gabapentin
to reduce these symptoms. Also take lots of B-complex vitamins, as it is possible that vitamin deficiency
is possible for the persistence of these symptoms. I feel that these symptoms will wear off and you will get well. But please avoid cannabis in future.