Hello,
It is known that NyQuil may cause stomach upset with the sense of
nausea and/or
vomiting. Flu itself and viral infections give this feeling too.
However, if it is persistent or increasing or
vomiting starts to occur especially in the presence of
headache, it is important to be checked by your doctor considering your medical history. The fact that NyQuil has also CNS effects like nervousness or
anxiety; trouble sleeping, and even
headache should make you more cautious while using these medications.
You have to be always in close contact with your doctor for proper management.
I would advise you to follow up with your doctor and to inform him with your new symptoms to exclude serious causes.
Please try to avoid any medications without consulting your doctor and at least getting proper information about your medications from the pharmacist.
Please keep us updated.
Best regards.
This answer does not substitute for direct medical consultation.
Dr. Safaa Mahmoud.
MB BCh, MSc Internal Medicine. MD Medical Oncology.
PhD Experimental Medicine and Biochemical Science.