どうもおなかの具合がよくない。

thanks; much (thanks); very (sorry); quite (regret); quite; really; mostly; somehow; in spite of oneself; no matter how hard one may try (one is unable to) (with negative verb); no matter how hard one may try not to (one ends up doing) (with positive verb, esp. -shimau); greetings; hello; goodbye

stomach

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

condition; state; manner; health

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

good; excellent; fine; nice; pleasant; agreeable; sufficient (can be used to turn down an offer); ready; prepared; profitable (e.g. deal, business offer, etc.); beneficial; OK