Maybe in some cases, but mostly no. Kimochi literally just means "emotion" or "feeling", like how you might hear "kimochi warui" (feeling sick/bad/disgusted) a lot in shows, which literally means "bad feeling". However, you might here it with a stretch on the last i, usually said by females. This one isn't the same word, since a the end there is the "ii" which means good. This word means feeling good, or to describe oneself feeling good. Therefore, if you were to type this word in Romaji it'd be Kimochiii, hence the stretch.