Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain the symptoms seems to be due to withdrawal symptoms of Marijuana and the dry mouth seems to be due to anxiety and stress while smoking is another potent cause of dry mouth, although you have stopped smoking now but the dry mouth will not be resolve so soon.. You should not worry as there looks nothing serious other than the withdrawal symptoms.. You should in no conditions start smoking again as gradually the withdrawal symptoms will become better.. You should limit the intake of tea and coffee as it can worsen the symptoms.. Keep yourself engaged in the activities of your choice and also keep yourself engaged with family and friends as it will deviate your mind and you will feel better.. Avoid staying alone as it can worsen the symptoms.. Do moderate exercise and take a healthy and nutritious diet.. You should drink plenty of water.. Chew sugar free chewing gums as it will reduce the urge to smoke as well as stimulate saliva flow.. Do meditation and breathing exercises as it can help in relieving headache as well as reduce the severity of the symptoms by stabilizing your mind.. Hope this information helps. Thanks and regards. Dr.Honey Nandwani Arora.