My bad, I see.
Originally Posted by neoarcangel
I cannot really give you a fixed phrase for "feel fine" in Japanese.
Both sentences have a same objetive and it is to know how to say correctly "feel fine".
But maybe 「気分（きぶん）がいい」 can be the one you are looking for?
"when I go running around the park, I feel fine, I feel encouraged"
This one is hard. Not really sure which you mean, but,
"when I wake up, I feel fine."私が目を覚ますとき、私は気持ちいい。(I think that it will be this sentence.)
Every time I wake up in the morning, I feel fine.← may imply the speaker does not always wake up in the morning.
When I wake up, I feel fine. ← may imply "not feeling fine after that" or something along the line)