Hello and welcome to HCM
There are many types and causes of head ache. The symptoms that you are mentioned suggest migraine or cluster headache
You need to visit a physician for complete history, clinical examination, investigation and management.
Painkillers can provide symptomatic relief.
The nausea and pain after having food can be due to indigestion
However, nausea can occur in migraine also.
Infection of the gastro-intestinal tract can be also lead to pain after eating.
abdomen and upper GI endoscopy
is required for further management.
Please discuss with your physician.
Thanks and take care
Dr Shailja P Wahal