See if you can tell if it's in only the abdominal muscles or if it's actually your intestines. If it's your abdominal muscles, then it's "simple" muscle spasms and cramping that happens with Lyme.
Do you take magnesium? Magnesium oil may be helpful, if you are already taking magnesium and still have this going on.
There are many types of magnesium and this is the best descript
ion I've seen so far of the type s and how they help/affect our body:
http://www.globalhealingcenter.com/natural-health/types-of-magnesium/