Based on the information provided, I cannot directly determine if the nausea has subsided since discontinuing aspirin for the individual in question. However, I can provide some context about aspirin and its side effects that may be helpful.

Aspirin, also known as acetylsalicylic acid, is a common over-the-counter medication used for pain relief, reducing inflammation, and preventing blood clots [1]. Like many medications, aspirin can have side effects, one of which is nausea [2]. If nausea occurs while taking aspirin, it may subside after discontinuing its use, as the body clears the medication from its system.

The NCBI resource [2] provides a comprehensive overview of aspirin's pharmacology, including its mechanism of action, metabolism, and side effects. However, it does not specifically discuss the duration of nausea after discontinuing aspirin.

The BPAC article [3] focuses on proton pump inhibitors (PPIs) and their association with aspirin. While it does not directly address the question of nausea subsiding after aspirin cessation, it does provide additional context about aspirin's use and potential side effects.

In summary, while I cannot definitively answer whether the nausea has subsided since discontinuing aspirin, I can confirm that nausea is a known side effect of aspirin use. If nausea occurs while taking aspirin, it may subside after discontinuing its use. If you have concerns about medication side effects, it is always best to consult a healthcare professional.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/ASPIRIN>
[2] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3798203/>
[3] <https://bpac.org.nz/2019/ppi.aspx>