Coughing and weakness. Me with the same!

No matter what I eat I start getting cough (not a dry cough) I'm unable to consume sugar even In milk Eating watermelon is also making me cough again During my training while ditching I collapsed because of the severe winters of delhi Post which my body was really sensitive to cold My fingers formed frost bites too back then last yr I was diagnosed with acute bronchitis I was in Doha at that time I got myself treated there for the same But after my treatment was done Consuming sugar or normally eat any fruit or even a lil of cold water/cold drink (even for once) I again start coughing. Since 2 continues week I have been taking tablets I took novomax 500  (which usually help me with cold n cough) But I started coughing again I then again started taking then below mentioned medicines Montec lc (once a day) Mega cv (once a day) Paracef (twice a day) I recovered (it took a two weeks for that) Now im coughing again I've mentioned every detail to u Requesting u to help me with the same