What Causes Sudden Fainting And Slurred Speech?

Recently I was found on my bathroom floor from an apparent black out. When found I was completely soaked in sweat but my body was not hot. I was slurring my speech and unable to open my eyes. I was unconscious for approx. 3-4 hours and unable to walk do to severely swollen feet and lower legs. Prior to the black out I had severe pains in my lower abdomen as tho I was constipated. However, I could not go. I do remember sweating to the point of dripping sweat. I had just finished taking a shower and was feeling pretty good except for the gurgling in my stomach. Other than that everything seemed fine. I have an apt with a Vascular specialist to follow up on a blockage in my left leg that has been causing major swelling in both legs since 11/23/17....I also know that my recent blood work showed that I have elevated liver enzymes which I will have an ultrasound on 2/1/18. It has been suggested that I may have had a seizure or possibly a slight stroke. I take Lisinopril and Amlodipine Besylate and Cephalexin currently. Please help give me some idea as to what happened.