I am a healthy 40 year old woman, normal weight for height etc, I play badminton once a week and do yoga. I am currently in the last throws of finishing a course of malaria tablets after returning from India 4 weeks ago. Otherwise I am not on any medication. Last evening at 7pm I ate a jacket potato with a very large portion of tuna, sweet corn and mayo together with 2 small glasses of wine. I took the two malaria tablets at 1030 and within a short time it felt like something was stuck in my sternum. There was a discomfort and slight burning sensation. I went to bed and it got progressively worse, like a real tightness in my sternum and more intense burning pain to the point I had to stand up to relieve it. I felt like I should burp but couldn t. I was in real pain. I had a gaviscon but it didn t make much difference. It is now 930pm the following evening and I just had a hot drink and it started burning again. I could almost feel the fluids passing through my sternum like something was blocking its passage. Since this started yesterday the problem has been constant. Im dreading going to bed tonight; I fear it will worsen again. I have never suffered with indigestion but last year my father dies of cancer of the oesophagus (but he was an alcoholic) can you please advise me what I should do ? Many thks in advance.