I've been sweating a lot since yesterday and when I checked my SpO2 with a pulse oximeter, it read between 93 and 98. I'm a bit worried and wondering if I should be checking it while I'm resting or after some activity. Is this range normal or is there something I should be concerned about? I haven't had a fever.

Your SpO2 readings between 93% and 98% are generally within an acceptable range, especially if you feel well and have no other symptoms like fever or breathlessness. Here are some key points to consider:

1. When to check SpO2: Measure your oxygen saturation while at rest, as activity can temporarily lower the reading.

2. Normal range: Typically, a normal SpO2 is between 95% and 100%. Readings slightly below 95% can occur but may need attention if persistent or accompanied by symptoms.

3. Excessive sweating: Sweating without fever could be due to stress, hormonal changes, or other non-infectious reasons. If it continues or you develop other symptoms, consult a healthcare provider.

4. When to seek help: Seek medical evaluation if you experience shortness of breath, chest pain, dizziness, or if your SpO2 consistently stays below 92%.

In summary, your current SpO2 readings are mostly reassuring. Keep monitoring your symptoms, and consult a healthcare professional if you feel unwell or notice worsening signs.