Is there anything I can do to ease stomach cramps?

Depends. There are many causes of abdominal cramp, depending on the etiology, treatment can varied. Please consult your physician for proper examination, and evaluation.
Cramping. Stomach cramps have a few sources. The stomach can cause pain from the acid, the gall bladder can cause severe cramping and pain, the bowels can cramp from irritation, viral infection, or inflammation, and females can get stomach cramps from the uterus related to their period. See your doctor for an exam, location of the cramping and appropriate testing or medications as needed.