Hi Dear
Welcome to Healthcaremagic Forum
I need to take a complete history from the patient himself. It looks a long and chronic disease and should be cured as early as possible.In the meantime, go for the following lag investigations: ESR, TLC, DLC, and PBF . I need to have a look at the patient . Please feel free to contact me . Good Luck!!!!!!

His blood and urine tests came out good. They said he is perfectly healthy..

When was the last time he was hit by a lightening? And also how much damage did it cause? Sometimes electric burns can cause the proteins in the muscles of the body to burn and some of it can dissolve in the blood vessels. The kidneys and the spleen are the major retro-peritoneal organs who get most of the blood supply, so they take up these constituents and react sometimes in such alarming ways to show something is wrong in the body.
other causes of shivering should be ruled out one by one. Plz get a PBF for malaria, ESR, Urine proteins and urine culture/senstivity done ASAP. in the meantime, give ur husband proper care emotionally as well as physically as most of the times, such incidents leave a major impact in the mind of the individual. Anyone at his situation can be scared as hell, so good emotional care also will help a great deal in curing him which only you can give to him.
God bless u.

Then maybe i will have to conduct a series of neurological tests on him like with the knee hammer jerk tests and other coordination tests. If i find something underlying CNS Brain disorder then i may refer you for a Ct or MRI Head Scan. Because i am sure this cant be anxiety. Mind calming Drugs give relief for a short time in these conditions but we need to cure and heal the inner disease which is spreading fast to other nerves also. For further queries contact me at my email or call me anytime. Good Luck!!!!!!!

He seems to be feeling better today. And he hasn't been struck by lightning for about 7 or 8 years.

I also know that he doesn't really have knee reflex..

Have you ever got an MRI Head Scan done ? I am suspecting something will definitly come in it. And does he walk properly? in short steps? Can he keep his back straight without any trouble and join his feet heel with the toe of other foot, close his eyes stand straight , face looking forward, eyes closed without waving or shaking or like he is going to fall to one side ??
Please reply??