Is stomach cramps and diahorrea a side effect of occiptal nerve block?

No: This could be due to some of the medications that you were given as a sedative. The block itself does not cause these problems. Talk to clinic where you got the block and ask their opinion.

No : Your current symptoms are merely coincidental to the nerve block. You may be experiencing a gastrointestinal viral infection. Make sure your not running prolonged fever with these symptoms.