Thanks for the query,
I understand your concern
Let me tell you that headache can be due to many causes like tension headache
, brain tumor/infection, bleed in the brain and so on.
The possibility in your case could be a tension headache. But, this is a diagnosis of exclusion. I urge you to get evaluated by a local neurologist
who will examine you and decided regarding the need of scan in your case. If the scan is normal, you may benefit with rest , relaxation and a short course of medications like amitryptiline/nor-tryptyline etc. Your low heart rate
could be raelted to thyroid
problem which need to be reassessed.
Hope this helps