I also developed floater and also symptoms of visual migraines at the very beginning of my neuro problems. Was referred to an eye doc who said it wasn't my eyes and my neuro just kinda shrugged his shoulders and I let it go. I also have heart involvement - palpitations and tacchycardia since the onset of the first symptoms which I was sent to a cardiologist for. If you are concerned about heart symptoms a cardio is the way to go because they have the tools to test more in depth for heart issues (this is what my neur told me when I first had problems) but I would say that palpitations can be (not sure what your situation is) signs of a lot of normal things depending on how constant they are if that makes sense