Feeling hot, nauseous, and bloated at 34 weeks could potentially indicate the onset of labor. However, it is important to note that every pregnancy is different, and these symptoms may also be attributed to other factors such as hormonal changes or indigestion. It's always best to consult with your healthcare provider for a proper evaluation. They will be able to assess your specific situation and provide guidance based on your individual circumstances. If you are experiencing any other signs of labor such as regular contractions or a change in vaginal discharge, it is advisable to contact your healthcare provider immediately as these could be indications of preterm labor. Remember to stay hydrated, rest when needed, and keep track of any changes in your symptoms.