I just had an mri of my brain. No tumors but some neck problem that might be causing me head aches

Your MRI ruled out a tumor, which is the main thing to rule out. The neck finding is a plausible source of your headaches.

The most likely link is cervicogenic headache — a headache that starts from a problem in the neck structures, not the brain itself. Studies show that people with this condition have measurably less neck mobility than people with migraines or tension headaches, especially in rotation and flexion/extension [1]. The upper cervical joints, particularly at C1/2, are often stiff and painful when pressed [3]. In one case series, nearly all patients could trigger their typical headache by moving their head or pressing on specific neck points [2].

The evidence here is mostly from older, small studies (the largest had 28 cervicogenic headache patients) [1, 2]. No study in this retrieval compared your specific MRI finding — whatever the radiologist saw — against a control group to say how often that finding causes headaches. The retrieval also lacks any randomized trial of treatment for this exact scenario.

What the evidence does show: cervicogenic headache is distinct from migraine, tends to be one-sided and long-lasting, and often does not respond to standard migraine medications like ergotamine or naproxen [2]. Physical therapy that targets neck stability has been shown to reduce pain and disability in people with cervical disc problems [4]. Manual therapy (spinal mobilization) was more effective and cheaper than physiotherapy or GP care for neck pain in one trial [6].

My call: Your neck finding is a reasonable suspect for the headaches. The next step is a physical exam by someone who knows how to test the upper cervical joints — a physiatrist, a physical therapist experienced in manual therapy, or a chiropractor who does not rely on forceful manipulation (which carries a rare but real risk of vertebral artery injury or infection in people with pre-existing neck degeneration [5]). Avoid neck manipulation by anyone who does not take your imaging into account.

Confidence: moderate — the mechanism is well-documented, but the evidence linking your specific MRI finding to headaches comes from small studies, not from a trial that tested people like you.