DR SALEYHA AHSAN: I’m now at Day 23 of the ‘100-day’ cough. What I have is whooping cough. It started with a mild cough in March, but within days I had severe coughing fits.DR SALEYHA AHSAN: I’m now at Day 23 of the ‘100-day’ cough. What I have is whooping cough. It started with a mild cough in March, but within days I had severe coughing fits.Read MoreHealth News | Mail Online