I highly suggest seeing a doctor (or better yet, a naturopathic physician) that truly understands and knows about the benefits
of this vitamin
, ask to be tested and make sure it if for D3 as that is the important one. In my opinion, it is very safe to take up to 5000IU of it daily, and to make sure the calcium isn't upset or unbalanced by it, add K2 to it as well, this should help your issues. It actually brought my husbands high blood pressure down.