Yep, a dull ache that sticks around and doesn't go... Get zoned out and sleepy. I know this is going to sound weird but fish oil capsules that are high in DHA has taken the "edge off" this feeling. I would consider giving it a try--I've taken the Nordic Naturals brand. An aspirin isn't going to work. I've had to go back on meds because of this particular feeling but I'm ok with that for now.