The changes that occur are known as migraine aura. They're a series of sensory signs that sufferers experience prior to the onset of migraine. You might notice the appearance of zigzag patterns in your vision, experience strange noises, or feel strange sensations such as tingling or a tingling sensation in your body.
The cause of the aura could be changed to brain cells or chemicals. Around 20-30 of migraine sufferers experience aura just prior to their headache. Looking for Migraines treatment Jersey City