I have had esophageal spasms on and off for 7 years. Diag. with reflux and put on Nexium. Nexium caused many side effects including urinary tract infection due to change in pH (suppression of acid). No help from Nexium. Found OTC meds for asthma containing expectorant and ephedra. Taking only small amounts (1/4-1/2 pill) was enough to quiet spasms and reduce mucous production. Be careful of ephedra, however, since it can increase BP. The small amount doesn't seem to add to BP, though. The docs do give nitroglyerine for spasms, but this works just as well. (incidentally, that feeling of "choking" is the esophagus spasming.) Have heard digestive anzymes with Betaine HCl will help reflux (probably same mechanism as ACV). Hope these suggestions help others.