The stomach pain, diarrhea (frequent stools), vomiting, and weakness may be related to the medications, particularly the antibiotic (Augmentin) or painkiller, which can sometimes cause gastrointestinal side effects.
Since your dentist has advised stopping the medicines, it would be best to follow their advice and inform them about the symptoms you experienced.
Regarding the tooth pain, medications can only provide temporary relief. The underlying cause still needs to be treated. Depending on the condition of the tooth, treatment may involve a filling, root canal treatment, crown, or extraction if the tooth is not salvageable.
Next Steps
I would recommend:
* Revisiting your dentist for a clinical examination and X-ray.
* Staying well hydrated and consuming a light diet until the stomach symptoms settle.
* Seeking medical attention if vomiting, diarrhea, fever, or weakness persists.
Without a clinical examination and radiographs, it is difficult to advise the most appropriate treatment option for the tooth.