I think you have a bad case of separation anxiety and are going to have to work with that. But you can't expect instant results... it's going to take time...

Here is a good website

http://www.wagntrain.com/SeparationAnx.htm

Good books

http://www.bulldoginformation.com/do...n-anxiety.html

I think you'll just need to do a lot of reading and take a positive reinforcement method to this. It will take time but if you love your dog, you can do it.