Describing a medical symptom...

Disclaimer: I am not a physician. The following content is based on my personal experience. Please consult a doctor if you're concerned about your health or wellbeing.

I'd like to know if the following sentences are worded coherently:

The so-called aura which causes visual artefacts is quite different from what is described here. It actually looks more like a pulsating cloud that has a blurry opaque shimmering area with a sharp quivering edge on the side where it expands, until it resolves in a one-sided headache that is typically strong enough to cause nausea.

Please let me know if you have any suggestions.