According to your postings you have gone through different facets of domestic violence. You have a strong case for filing a domestic violence case against your husband. If you can, on the whole, prove the various acts of vioelnce by your husband--please do not equate vioelnce only with beating and battering--as is clear from your postings, you will be entitled to receive compensation, maintenance for yourself , child support, medical expenses, child custody residential and rights in your matrimonila home or if you want to stay separate with your child, rental for an approapriate accommodation. In your maintenance claims, you can ask for the expenses of a maid which you require in view of your fragile health condition.
Fight for your right please with the help of a good advocate. You can go by reference for an honest and capable advocate. I hope you have a good support system in this critical situation that you are facing.
If you do not want to give divorce to your husband, domestic violence act is an appropriate legal remedy for you.
Also it would be good if you yourself can go through the domestic violence act 2005 .It will help you to organise your experiences in a logical sequence and give you confidence to discuss your case with the advocate you will be engaging.
Wish you the best....