The goal of this clinical trial is to learn whether a wearable transcutaneous electrical nerve stimulation (TENS) device called EmeTerm can help reduce nausea in adults who have had nausea for 2 months or longer and who receive care at The Ohio State University. The study will also evaluate whether use of the device affects other symptoms and aspects of wellbeing, including vomiting, abdominal pain, bloating, constipation, appetite, sleep, mood, stress, fatigue, quality of life, and hope. [34_Emeterm...rotocol_v3 | Word]

The main questions it aims to answer are:

Does using the EmeTerm device reduce the average weekly frequency of moderate to severe nausea compared with symptoms during a baseline observation period? [34_Emeterm...rotocol_v3 | Word] Does using the EmeTerm device reduce the duration of nausea, frequency of vomiting, and use of anti-nausea medications, and improve other gastrointestinal symptoms, wellbeing, and quality of life? [34_Emeterm...rotocol_v3 | Word]

This is a single-arm study. Participants will serve as their own comparison by comparing symptoms during device use with symptoms recorded during the baseline period before using the device. [34_Emeterm...rotocol_v3 | Word]

Participants will:

Complete a screening survey and provide electronic informed consent if eligible. [34_Emeterm...rotocol_v3 | Word] Complete baseline questionnaires and record daily gastrointestinal symptoms for a 2-week baseline period. [34_Emeterm...rotocol_v3 | Word] Receive an EmeTerm wearable TENS device and instructions for its use. [34_Emeterm...rotocol_v3 | Word] Use the EmeTerm device for 12 weeks while continuing to record nausea and other gastrointestinal symptoms. [34_Emeterm...rotocol_v3 | Word] Complete weekly and monthly surveys about symptoms, stress, sleep, appetite, fatigue, quality of life, anxiety, depression, autonomic symptoms, device experience, and any adverse events.