Hi.
I think you may be having Gastritis,because of Antibiotics.I think you are vomiting Bile.Hope you are not forcibly doing that.
All the complaints that you have mentioned are Non specific one.They doesn't fit into a specific disease.
But,You can add Proton pump inhibitors along with antibiotic which protects the upper Gastro intestinal tract.If you are taking powerful antiinflammatory drugs,please stop and replace with safer drugs.
All the best.
Regards

HI I have gone through your mail and as you said that you have sore throat ,sinus infection,chest pain, cough with sputum,these symptoms are for quite long time,at the bigening you were getting response of antibiotics but now these re of not much help and you now feel nausea also.After listening your story I would like to say that you should go for these investigations (1) C.T.scan para nasal sinuses, (2) Culture and sensitivity of throat swab,(3) X-Ray chest P.A.view. After this you should contact your E.N.T.doctor for your clinical examination and co-relation with investigations to make diagnosis and treatment.If conservative treatment is appears to be not of much benifit than some surgical process may be recomonded.Thanks.