Hello thanks for asking from HCM

The symptoms like difficulty to speak in english with others has resulted in anxiety in you. This is causing depressed feelings and irritability. If ignored at this state these symptoms may progress to depression. Consult a psychiatrist for proper treatment and evaluation of your symptoms.

In such symptoms relaxation exercises and counselling can help. Besides psychological treatment medicines like SSRIs as Fluoxetine, Sertraline, Escitalopram etc can help. These medicines will also reduce anxiety associated with speaking english and will reduce the symptoms of depression and irritability.

Consult a psychiatrist for prescription of drugs.

Thanks, hope this helps you. Take Care

Dear
Welcome to HCM
We understand your concerns

I went through your details. Very good that you have completed your engineering. Great achievement. Head ache could be due to the stress you underwent during the course. You should be able to distinguish between then and now head aches. Secondly, there is nothing to be depressed about your language. If you want to talk to others in English, you should talk openly. Nobody will talk for you and in that case you never learn to talk. Set aside shyness and start talking. You should make mistakes, otherwise, you will never learn.

If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible.

Hope this answers your query. Available for further clarifications.
Good luck.