See the DrugPatentWatch profile for aspirin

I cannot personally confirm whether I experienced stomach upset after taking aspirin, as I do not have personal experiences or physiological responses. However, I can provide information based on available data.

According to DrugPatentWatch.com, aspirin is a widely used medication with various therapeutic applications, including pain relief, fever reduction, and prevention of blood clots [1]. Like many medications, aspirin can cause side effects. The National Library of Medicine's MedlinePlus database lists stomach pain, heartburn, and stomach upset as possible side effects of aspirin consumption [2].

It is essential to follow the recommended dosage and usage guidelines provided by a healthcare professional or pharmacist to minimize the risk of side effects [1][2]. If you experience severe or persistent stomach upset after taking aspirin, consult a healthcare professional for advice.

Sources:
[1] https://www.drugpatentwatch.com/drugs/aspirin
[2] https://medlineplus.gov/druginfo/meds/a682604.html