Marijuana Addiction & Recovery Support Group
This community is dedicated to those looking to overcome their addiction to marijuana, a drug produced from parts of the cannabis plant. Join the group to find support among people who are also looking to cease their habit of smoking marijuana, share your experience, and get advice. It's not easy to kick the habit, but together we can.
What I can say is that it sounds like you are having some anxiety issues. The pulsating head sensation is very likely getting caused by yourself getting really worked up and stressed. Focusing on it and then causing it to get worse possibly.
If you are concerned I'd recommend talking to your doctor but I think you are just getting really anxious. Try learning some deep breathing techniques to calm yourself before your appointment.