I was really sick for almost 2 months i recovered but my head feels really tight & pressure feeling i was under a lot of stress for 2 months.anixety ?

Could be: But other times could be simple congestion form, for instance, allergies. Or perhaps a cold virus. An antihistamine with a decongestant can work wonders. If this works for you you may have your answer. If not, it could be the tension or anxiety. If not improving or worsening see your md.

Possibly: You need to see a doctor with whom you can communicate effectively. First you must have them exclude organic causes for the headaches, and then you may want to speak to a psychiatrist or clinical psychologist and get the source of the anxiety clarified and treated appropriately. Good luck.