It could just mean that you are in a relapse. I hope that is all it is and soon the symptoms will reside. Have you contacted your neuro about the new symptoms? Maybe he/she can add to what is going on.
Floaters do not necessarily mean MS. I am 47 and have had them for years do to good old aging. I do not know your history. If you have not seen an opthamologist in awhile it could not hurt MS or no MS. If you are concerned you can bring it up to your Neurologist. Not being a medical professional I would hate to give you the wrong advice.
Floaters are natural objects in the eye. I have several in each eye that the ophthalmologist has been able to see for the last 25 years. They are so common, Wikipedia has an entry for them: