Hopeful820 - there are plenty of calcium-rich foods, other than dairy products. You ought to google it and see which of those foods appeals to you.
My endocrine surgeon says to aim for getting my vitamin D higher than what is considered normal. The pills I take are 5,000 IUs. Most people I know who take a vitamin D supplement are taking at least 4,000 IUs, which is higher than many physicians would recommend. But those who are aware of its importance know you need the higher amounts to provide protection.