Hello. About 2 years ago I noticed I had a pea sized lump in my left temple. I mentioned it to my GP but he told me it would probably go away. I've been getting headaches and blocked sinus/runny nose and a lot of painful pressure headaches on that size of my head for the past year. I noticed when I do have headaches the area where the cyst is feels puffy to touch. The headaches generally last about 3 days. I have tried every sinus related medication and migraine medication under the sun but the headache doesn't shift. I've had Physio and do yoga as well. I have had my eyes tested and also see the dentist regularly. Should I be concerned about this small cyst? I'm not sure what it could be but these headaches are very debilitating!