Well, that is great that you are better.

If you eat calcium containing foods, you might drop that calcium supplement. Taking Vit D may be a conflict. Some cardiologists now suggest dropping calcium (esp for women in new studies), as the D increases GI absorption quite a bit.

100mg of Benadryl (diphenhydramine) is a huge dose! As we age this drug has anti-cholinergic effects, that are not good for your eyes, or cognition. 25mg at bedtime should be enough for most people.

Google "risk of hypercalcemia with Vit D" and see what you find.
Your dose of 4800 IU is not really that high, IMO.

It might be that your calf pain, will permanently resolve with proper levels higher for a while. Really Vit D levels take months to resolve IMO. It is not a fast acting supplement.

I'll try to look around the net for you about "high" and what is really high etc when it comes to D.
The Vitamin Council and Grassroots.net seem to have the newest research:
http://www.vitamindcouncil.org/
http://www.grassrootshealth.net/

These two sources have alot of research that they report.