Diagnosed with chronic migraine however, i have also been suffering from shooting achy pains throughout my body that make me feel very stiff .i also feel very tired and have low moods.is this related?

Could be: Any chronic pain or headache may make you feel tired and depressed. Hope you are following up with your doctor regularly , since your doctor may help you manage your symptoms better as he or she knows your medical history . Sometimes I use ssri with migraine patients, it helps.

Fibromyalgia : You may have fibromyalgia which is chronic widespread pain for over three months often associated with sleep problems, hormone issues, mood disorders, headaches, etc. There are good treatments both medically and non medically. Obstructive sleep apnea can also be associated with chronic headaches, sleepiness and mood disorders.