You should initially consult a General Physician for a lump in the throat. Further consultation will be determined by the suspected cause and will require consultation with either an ENT or a Gastroenterology Surgeon.
2. Is it serious, if you have a lump like sensation in the throat?
Usually not. The sensation of a lump in the throat without any physical cause is usually due to stress or Gastro-esophageal reflux, which are not serious and can be managed with drugs and counseling. If there is an identifiable cause for obstruction leading to lump like sensation in the throat, thorough evaluation is necessary to check the nature of the lump (cysts, canker sores, tumors, etc.).
3. Why am I feeling a lump-like sensation in my throat only when I am at my work place but my GP says that my physical exam and test results are normal?
A lump-like sensation that is only felt at certain places and which occurs without any identifiable cause is termed Globus Hystericus. It occurs due to stress that arises in certain situations. You need to practice stress relief therapies, resolve issues with your colleagues if any or look for a change of job if things are not improving.
4. Which is the most common cause for a lump-like sensation in the throat?
The most common cause for a lump-like sensation in the throat is Gastro-esophageal Reflux Disease (GERD) and stress. Following these, infection causing swelling of lymph nodes in the throat is common.