When i swallow i get a bad taste all the time?

Many possibilities: You should get a dental exam or exam of your oral cavity by your pcp with follow-up if necessary by an ent. This could be postnasal sinus drip, an infection in the nasopharynx, an esophageal diverticulum, or other pathologic lesion. Go and get examined, diagnosed and treated. Good luck.

Get checked: You'd be wise to have your physician check you for a zenker diverticulum and reflux; a good ear-nose-and-throat exam might be in order. Good luck.