Irritating dry cough for 7weeks after cold, tickly feeling in throat, wheezing, no blood or phlegm, worse when lay down. Dr said chest clear, is it bad?

? reactive airways. disease, can follow a viral URI. Your airways, upper/lower would become twitchy and cause the symptoms that you have, although your lungs would be clear on exam, but with other triggers as exercise, or reflux (on lying down) you can start having dry cough and wheeze. See your GP for control of reflux (? a PPI) and airways spasm (would need a broncho-dilator). You may need to see an allergist.