You might feel fine one moment, then overcome with emotions the next. That’s perfectly normal. Bear in mind that you might also be affected by the mood of the person you’re taking care of.
As a caregiver, you’re closely connected to that person. Your mood could swing from love to anger, or from optimism to pessimism. It's best to accept these negative feelings and let them pass. You can help ease them simply by focusing on the activity of caring for your loved one.
Here’s a tip: when you experience an unpleasant mood swing, try pausing for a moment, take a deep breath, and exhale slowly. Also, if you can, take a five-minute break from your caring. Both those things will help you feel better. Which will make you a better caregiver.