Hello.
I am Dr Mittal.
I have read your message.
I think I can help you.
First, I dont think this is
brain tumor. The brain tumor patients do have headache and
vomiting. But it is for a long time, not for 5 days. So try to relax. That itself may reduce your headache.
The way you have described the headache, one sided, probably pulsatile is suggestive of a
migraine. This may be associated with a feeling of apprehension or anxiety. And loosestools do occur with migraine.
However, a CT scan is still needed. It would be prudent to talk about therapy after scan especially since you have it soon.
Meanwhile, take some painkillers and antiemetics. A simple
Pantoprazole with
paracetamol may help you for the time being.
I have tried to make it as simple as possible.
Feel free to contact me for further clarification on any point.
Best of luck, Dr Mittal