Hi Melodie, he had a Mayo appt on Tuesday that he skipped? Or it was postponed?
If he has ALS, you will surely want a verified diagnosis for benefits when he can no longer work, not only Medicare and disability income but any disability coverage he has with his employer.
Lyme tests don't take that long to get back from a legitimate lab, but, as Nikki says, there are many quacks in the field. The extent of what you report does not sound like Lyme, which I have had, could account for all that.