Nausea physical discomfort what's going on?

Patient's question:

Nausea
Feeling like vomiting but unable to vomit
It's been quite some time
I've forgotten the exact duration
Anyway, it's been a long time
Previous treatment and effectiveness:
Drank fever-reducing decoction
Used Radix Isatidis
What kind of assistance is needed:
Looking for a good medicine
Healing myself from this illness
Hehe
Truly painful

Doctor's answer:

Based on the explanation of your condition, I mainly consider the possibility that your upper respiratory infection has caused gastrointestinal dysfunction.
Advice: Therefore, I suggest you go to the hospital for relevant and thorough examinations, such as blood tests, urine tests, stool tests, liver function tests, and kidney function tests, to quickly identify the condition and provide appropriate treatment. I recommend discontinuing the use of fever-reducing medications, and you can currently take many medications that regulate gastrointestinal function, such as Siquan Decoction Oral Liquid.
In daily life, pay attention to rest, avoid overexertion and exposure to cold, and eat more easily digestible, high-protein, high-vitamin, and high-fiber foods, such as vegetables, fruits, lean meat, fish, etc.