I am so sorry for the pain you feel. Most people who are not animal lovers don't understand and its hard to talk to them about this terrible pain you feel - but here you can talk and we all understand. This might be a site you would like to visit.
http://www.petloss.com/

You have been given some helpful advice. When you are ready to get a new dog - a rescue might be a good idea as you would be saving a life and your 2 dogs that have passed on to the R.B. would want you to share your love with another animal.