Hi, I'm 32yrs Old Male From India. I'm Suffering From

Hi, I'm 32yrs old male from India. I'm suffering from weakness in my left body parts from past many years. Especially my left shoulder is much weaker than my right shoulder. Sometimes I feel a muscular pain from left collarbone to top of left side of head through neck muscles. Sometimes it becomes very severe and I have to massage myself on painful areas to get relief. Now it's effect is showing on my face also. My left eye is getting shrinked and looking smaller than right eye. It looks as it's little bit pulled inside. Moreover I feel difficulty in walking also and I'm carrying much body weight on my right side.

Yesterday somebody told me that my symptoms are very similar to Cerebral Ischemia. I don't know much about it. Can you please help me in this regard ? Is it cerebral Ischemia or something else ? What should I do ? To whom should I approach to cure it ?