i have the same tires as you... this is what i did to my rear wheel on a pothole in brooklyn last week.
i didnt even bother risking it-- i had to drive on 0 pressure over a mile to get off the highway. put a new tire on and replaced the rim, when they were blowing them out, i bought an extra set of 4 F1s
bad news, the F1 GS-D3 in 235/35/19 is on national backorder. tirerack no longer lists it as a size, and discount tire direct has it listed as special order only.
i would bring it to a good tire shop to inspect. i suspect you might have a bubble. the damage, if any, should be visible as a tear or a crack near the impact site on the inside of the tire.