Am experiencing throat tightness, Head tightnessfor an year now, Ear feels clogged, Stabbing pain in the top centre of head at times.. Some in difficulty in swallowing saliva as i feel something stuck in throat. A bit saliva runs out from mouth.. Dry Cough as soon as i get to bed.. Feel like having phlegm always at the back end of throat which i have to take with a lot of force to spit it out.. Please help