Thanks so much for the reply! 2 days prior to the start of this visual problem I suffered a terrible migraine that caused sharp eye pain and pressure behind it. However, I didn't experience any migraine aura and I don't think visual problems would appear after the pain. I also had diarrhea (not sure if this is relatable) and took Gastro-Bismol and I don't think a visual symptom was even listed. I will definitely have this checked out ASAP.
I recommend an evaluation with an ophthalmologist, including a visual field and dilated exam. Before the consultation, note whether the symptoms occur in one or both eyes, and tell the doctor about any other associated symptoms like headache, nausea, or eye pain. Also tell the ophthalmologist about any prescription or over the counter medications you take, as well as any supplements.