When I was in the reserve the (old, now decommissioned) USS Kennedy was steaming down the east coast to go to Pensacola for carrier quals for flight students. They put out an APB for any reservist who wanted a few days at sea. To that point the only sea time I had was on floats on gator freighters, so what the hell, why not. We were off Florida when a tropical storm was riding the eastern edge of the gulf stream up the coast; the roll was incredible. There were alternating footprints on the deck and bulkhead: you would take one step on the deck, the other, on the bulkhead. That was the second and last time I got seasick. The first was doing diving ops and we had surface chop, waves/swells about 10' high. Inflating my BCD and riding the waves up and down, up and down....that did me in.
You should try it on one of the escorting tin cans. Fun times!
Terry