Silent Reflux, Tension Headache & Consti

Hi , I had pharyngitis last year and after treatment doctors said I had Stomach Reflux. So i took medicine for it, Pentin L, for about 2 months and all was good. After a year now I am facing the same problem but now the symptoms are more severe. My tonsular area has become dark red, throat is reddish. After taking Pentin L for more than a month now, the symptoms Don't get away and due to the worry, i guess, I am getting tension Headaches every now and them from last 10 days. Also Constipated from 2 weeks, took laxative that helps only untill taken, when i stop taking laxatives, the constipation comes back. I am very worried that there is some underlying condition. Is there? I was a smoker from 7 years and I quit many times. Now I have quit from last 50 days. I have also had dengue once 3 years ago. Anybody having any experience about my particular situation.? Please help.