Tribulations

are,

Severe afflictions; anguish;
troubles; distresses of life;
persecution; vexations.

...we glory in our tribulations also,
knowing that tribulation worketh patience; and patience, experience; and experience, hope;
and hope maketh not ashamed;
because the love of God is shed abroad in our hearts
by the Holy Ghost
which is given unto us.

Romans 5:3-5