Seizures or low blood pressure??

Hello everyone:) I'm hoping someone might read this and have some advice for me. Over the last few months I've had intense feelings of dread/fear that come and go very quickly. This has been happening almost every day. Then a couple of weeks ago right after I would have the intense fear feeling my head would droop forward and I can't keep my eyes open. I'm aware of everything around me I just can't open my eyes or lift my head. Sometimes if it happens when I'm walking I fall. I've noticed that I slurr if it comes on while I'm in a conversation. I also get very tired afterwards. My limbs feel very heavy sometimes like walking through water. I get a sense of being detached sometimes too. Before I was having This for just a few seconds and then it would pass but now it lasts longer and it's seems like the episodes are almost back to back. My dr thinks I'm experiencing sudden drops in blood pressure possibly caused by something neurological. I have an appt with a nuerologist next week but it's driving me crazy not knowing what's wrong with me. I have three kids under the age of five and ive had to have someone with me daily to help care for them:( I feel like my life is crumbling around me. I just want to be me again. Oh and my blood pressure is very low, last night it was 80/49. Can low blood pressure be the culprit or am I having some kind of seizure? Thanks for any advice:)