Faulty Clutch?

Hi all,

Ford focus 2002 1.4cl.

I have had no issues of late until I was returning home from a local trip.

Whilst accelerating in 2nd the rev counter increased however I gained no further speed. (sounded like revving whilst stood still out of gear)

I moved up a gear and the speed incresed however when I accelerated it did the same once my foot was going down a little harder.

1st and 5th dont seem to have a issue?

I tried setting off in 2nd/4th car stalled.

I dropped from 3rd to 2nd and the rev counter increased suggesting the clutch was working?

After travelling around for a hour trying to understand whats happening I left the car for a few hours and then the issue went?

I can accelerate normally and gear changes seem sweet? No warning lights or engine managements have come on btw.

From what I have read it sounds like the clutch is slipping? Is this the case or is it possible it could be something else?

Am I on the road to a new clutch :( ? Before I travel to the garage with no apparent fault/issue at the moment?

Thanks in advance for any suggestions or help.