[Caroline UK]

Hi Chelee, I'm sorry to hear of your worries. On just the headache issue, I wondered if you might still have dried up sinuses from the Herceptin, even though you finished it a few months ago - I imagine it might take the body quite a while to start producing the cilia cells again that moisten and waft the dust away. I get worse headaches when I'm aware my sinuses are feeling dried out. Maybe it'd be worth trying steam inhalations two or three times a day for a couple of days and just see if that helps, especially just before you go to bed, together with some relaxation tapes perhaps. Maybe even a light massage with a few drops of lavender oil added, if you can persuade someone to do that for you.
Of course you're going to worry, and it's good that you're getting everything checked out.
Wishing you all the very best
Caroline