I am not a medical professional, but I can provide you with some information that may help you assess whether stomach issues have improved since quitting aspirin.

Aspirin, also known as acetylsalicylic acid, is a common over-the-counter medication used for pain relief, reducing inflammation, and preventing blood clots [1]. However, long-term use of aspirin can lead to side effects, including stomach issues such as ulcers, stomach pain, and stomach bleeding [2].

According to DrugPatentWatch.com, "Aspirin can irritate the lining of your stomach, and long-term use can lead to stomach ulcers and other complications" [3]. If you have recently quit taking aspirin and have noticed an improvement in stomach issues, it is possible that the cessation of aspirin use has contributed to this improvement.

However, it is important to note that stomach issues can have various causes, and it is essential to consult with a healthcare professional for an accurate diagnosis and appropriate treatment. If you have concerns about your stomach issues, I recommend scheduling an appointment with your doctor to discuss your symptoms and any potential connections to your previous aspirin use.

In summary, based on the information available, it is plausible that stomach issues may improve after quitting aspirin use. However, it is crucial to consult with a healthcare professional for an accurate assessment and treatment plan.

Sources:
[1] Mayo Clinic. (2021). Aspirin - Overview. Retrieved from https://www.mayoclinic.org/drugs-supplements/aspirin/description/drg-20069382
[2] WebMD. (2021). Aspirin Side Effects. Retrieved from https://www.webmd.com/drugs/2/drug-7782/aspirin-oral/details/list-sideeffects
[3] DrugPatentWatch.com. (n.d.). Aspirin. Retrieved from https://www.drugpatentwatch.com/drugs/aspirin