Substrate is very often a big debate in keeping tortoises. I have Russian tortoises, I try to mimic their natural habitat as closely as possible.Since they are an arid species, I use a 50/50 mixture of playsand and topsoil deep enough for the tortoise to burrow.ubstrate is very often a big debate in keeping tortoises. I have Russian tortoises, I try to mimic their natural habitat as closely as possible.
Headaches That May Present With Ophthalmic Manifestations Primary Headache Syndromes Migraine Migraine is the second most common headache syndrome seen in clinical practice. Migraine headache is often characterized as a disabling pain, moderate to severe in intensity, unilateral in location, and pulsatile in quality.
Practice Essentials. Migraine is a complex disorder characterized by recurrent episodes of headache, most often unilateral and in some cases associated with visual or sensory symptomsâcollectively known as an auraâthat arise most often before the head pain but that may occur during or afterward (see the image below).