Leg cramps, usually brought on by ingestion of alkaloids derived from or related the
ergot fungus (which primarily feeds on rye). Such alkaloids include ergotamine,
LSA (found in certain varieties of
Morning Glory Seeds), LSD, and several others. It is a good sign you need to lay of the A for a while.
That
Morning Glory trip was great, but I had ergotism for a few days. Better
take a break for a few weeks.