Hmmm...could be but it sounds more like pain from spasticity and inflammation.
When I get the HUG it is more of squeezing pain around the abdominal area that extends to the chest that makes it hard to breathe; but every one is different.

With the ON you mention in another thread, if you think that you might be in a flair, a trip to the ER might be in order rather than waiting to see your PCP.
The pain of the HUG can get really nasty in a hurry. do you have some medication that you take for spasms like Baclofen? That helps tone down the HUG for me.

With love, Erika