Suggest Treatment For Stuck Food Inside Throat

When iam eating, Iican take a few bites and then when Iissipcold water, Iit seems to get stuck in the throat. SometimesIican wait a moment and Iit will pass. Lately ighavehad to get up from tthetab m e and walk around. MMostrecently Iihave spit up a clear mucus llike subtance that does not resembleany food I had taken in but is cconsistentwwithth aamountof water iin takenit is just not water.