ups and downs

noun[plural only]2

1. •
   Periods of positive and negative events, moods, or interactions; highs and lows.

   • Heidi and Mike had their ups and downs, but they stayed married for more than 60 years.
2. •
   Undulations.

   • [...] speed barely exceeded 30 m.p.h. until well beyond Kelty and from the front end the ups-and-downs of the track occasioned by pitfalls are very noticeable. — 1960