Mri shows bulging discs & early degeneration. unable to get out of bed for a week, now suffering from migraine & nausea. could these be looking linked?

Pain in the neck: or abnormalities of the spine, such as you have, can cause pain and tension in the neck, which in turn can cause primary headache or migraine. See a headache specialist for proper diagnosis and management.

Back migraine: The findings on the MRI are very unlikely related to the migraine and nausea. You are only 31yrs the early degeneration is a process of ageing. As long as the bulging disc are not causing stenosis or compression treatment should be PT. The migraine with the nausea is treated differently.