Hello Jo and welcome 
There are quite a few people here who have had suspected MS become either lupus or APS (Antiphospholipid syndrome - aka Hughes syndrome aka "sticky blood).
Many APS symptoms are quite similar to those in MS and I should think that the blood tests he has asked for include those. One of them is confusingly called the lupus anticoagulant test but it is a test for APS and not lupus.
The doctor is probably also running other tests such as ANA (a screening test for many auto-immune diseases) and possibly more specific antibody tests which can determine which type of auto-immune disease.
The symptoms of lupus are so varied that many of us here may share some of your symptoms but not all, others will share other symptoms...
bye for now,
Katharine
There are quite a few people here who have had suspected MS become either lupus or APS (Antiphospholipid syndrome - aka Hughes syndrome aka "sticky blood).
Many APS symptoms are quite similar to those in MS and I should think that the blood tests he has asked for include those. One of them is confusingly called the lupus anticoagulant test but it is a test for APS and not lupus.
The doctor is probably also running other tests such as ANA (a screening test for many auto-immune diseases) and possibly more specific antibody tests which can determine which type of auto-immune disease.
The symptoms of lupus are so varied that many of us here may share some of your symptoms but not all, others will share other symptoms...
bye for now,
Katharine