Yes, migraines can occur on and off throughout the day. Migraine attacks are characterized by severe headaches often accompanied by other symptoms like nausea, sensitivity to light, or aura. The duration and frequency of migraines vary among individuals, and some may experience multiple episodes in a day. If you're experiencing frequent or severe migraines, it's advisable to consult a healthcare professional for proper evaluation and management.

You have done well by observing that your seizures change when you take Epilim or not. Ensure to let your doctor know your intentions. They can assist in identifying a suitable drug and dosage that will help manage the condition without harming the fetus.

It is normal to have high blood pressure after a stroke. These blood pressure rises could be because of the brain damage that regulates the level of pressure. Furthermore, hypertension is often asymptomatic however it can cause additional strokes. Ensure that he takes his medication, eats well, and goes for check-ups regularly. 

You find yourself to be mentally down as a result of the treatment, which was proton beam therapy for your brain tumor. This is a natural outcome because the treatment hurts the healthy brain tissue. Some usual symptoms are fatigue, memory problems, and a problem concentrating.  Make sure you rest, eat the right foods, and keep in contact with your healthcare team. Alongside counseling, look into this support program for a solution.