Took Tylenol For Cold And Passed Out. EKG Was Done With No Specific Results. Consult Neurologist?

My sister was feeling the cold symptoms and took a Tylenol and Nyquil before going to bed. The next morning took another Tylenol, she passed out and the witness reported LOC for about 30 sec’s, twice and sounded like choking while unconscious. She does not remember passing out. She was taken to the ER; an EKG was done and sent home b/c nothing was found. Next morning she started c/o headaches, went to her PCP and dx with Migraines HA, ibuprofen given (she is allergic to aspirin) with some steroid (??) medication in case she gets a reaction. She is not getting better and I am afraid she could get a bad reaction to the ibuprofen. It looks to me that she had some kind of seizure. This is the second time it happened after having her baby. What should I tell her to do? My feelings tell me she needs to be seen by a neurologist, any recommendations, please.