What are the “red flags” in this case?

Martha Hernandez

22 years old female, 5 7 tall, 118lb 53.6kg
Chief complaint: bad throbbing deep headache since yesterday and hasn’t gotten any better and also feel a bit nauseated, she unable to do anything. Rating 8/10, start when she was working on term paper
What she thinks might be cause headache: I’ve been pretty stressed out lately
Pt has history of headache for long at interval of 4 to 6 week they are getting more worst and painful headache start from temple and radiate to the whole head
Headache: one that is relieve with Tylenol and other that is relieve with lying down in bed in the Dark
Headache: she tried coffee but it makes it worst, her headache can induce by red wine
She feels nauseous at the same time and loud noise bother her
Start when am awake and never keep me from sleeping
How long it last: it happens more often
No patterns to the headache, start gradually and get progressively worst
Sister has frequent headache and mother sometimes want to lie down alone in the dark
2 Tylenol tablets every 4 hours since the headache start
It doesn’t come and go once it started it last usually last more than a day.
Nausea: stomach unsettled and doesn’t feel like eating or drinking

PLEASE CONSIDER EVERTHING UNDER DIAGONOSIS FOR HEADACHE AND NAUSEOUS

Management Plan: Use the expert diagnosis provided to create a pertinent comprehensive evidence-based management plan. If a specific component of the management plan is not warranted (i.e., no referrals are appropriate for the virtual patient) document that no intervention is warranted. Include the following components:
diagnostic tests
medications: write a specific prescription for each medication, including over-the-counter medications
suggested consults/referrals
client education
follow-up, including time interval and specific symptomatology to prompt a sooner return
cite at least one relevant scholarly source as defined by program expectationsLinks to an external site.
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Reflection: One rule is to always include “the worst-case scenario” in your differential diagnosis and make sure you have ruled out this possibility based on your findings and patient assessment. Your goal is to minimize the risk of missing unusual or infrequent conditions such as meningococcal meningitis, bacterial endocarditis, pulmonary embolus, or subdural hematoma that are particularly ominous. 
Address the following question:  What are the “red flags” in this case? Based on your pertinent key findings, what is “the worst-case scenario”? What lessons did you learn from this case that you can apply to your future professional practice? Include the following components:
write 150-300 words in a Microsoft Word document
demonstrate clinical judgment appropriate to the virtual patient scenario
cite at least one relevant scholarly source as defined by program expectations
communicate with minimal errors in English grammar, spelling, syntax, and punctuation