Hi, You might be suffering from cannabis induced anxiety. Developing anxiety following intake of cannabis is quite common. If it is mild, generally it gets over on its own in few days. However, if symptoms are severe or its causing distress, treatment need to be started. You should consult s psychiatrist for the same. As of now, you might need a short course of benzodiazepines like clonazepam which should be tapered gradually. However, if the problem still persists, some long term treatment with selective serotonin reuptake inhibitors may be needed. The most important thing to remember is that you should avoid any drug hereafter. Once it has caused problem, cannabis can precipitate further similar problems. It can also lead to severe disturbances like psychosis, etc. Hope this information was helpful. Best wishes.