What Causes Swollen Legs, Knees And Ankle While On Blood Pressure Medication?

Hi. I was taken to ER last night with stroke symptoms.(double vision, slurring my words, droopy left side of face - eye and lips, and weakness in my left arm) I am 37. They did a CT scan which they said was clear They hooked me up to all the monitors and my blood pressure was actually very low (65/38) and stayed in that range for many hours. They started me on fluid with electrolytes. I was having severe upper back and neck pain also. It was like a charley horse spasm and kept coming and going. They gave me a small dose of morphine to help with that. They kept me overnight for observation and kept giving me fluids until my blood pressure was back to normal levels. I take blood pressure meds everyday for high blood pressure.....? They released me this morning and said my diagnosis was blurred vision and neck pain....which I feel is not an accurate diagnosis. My legs from knees down are very swollen, especially my ankles. Is any of this normal? They told me to folkowup with my neurologist in the next couple of weeks. I really feel they ve miss something here. I feel completely awful today. Everything hurts and I have zero energy or strength to do anything! Any advice would be much appreciated!