SallySue

As Loretta says, CRPS cannot cause Lupus. The various types of lupus are auto immune disorders. It is not proven that CRPS is an auto-immune condition. That is one hypothesis in a whole series of possible ideas about how it is caused. It may turn out that what we call CRPS today is, in fact, more than one different condition, each of which may have different underlying mechanisms causing them.

Loretta
I hope you have some answers soon. Don't forget that blood in your urine could be caused by very many different things, even things as simple as kidney or bladder infections or stones. These can be exceptionally painful and horribly unpleasant, even making you feel quite generally unwell but can be relatively easy to treat so don't panic yet. Lets hope it turns out to be something fairly harmless and you can get rid of it quickly. Waiting till May is a long time though, especially if you are feeling rotten. I hope you are able to get some answers long before then.