I am confused about tense of how to express I am suffering or have been suffering something uncomfortable and need your confirmation to remove my confusion. Can I say:
1 I am breaking out in a cold sweat.
2 I've broken out in a cold sweat.
3 I've kept breaking out in a cold sweat.
4 I break out in a cold sweat.
Could you please tell me which one sounds natural to your native ears? Thanks.