WPF 500NL final 2 tables - pocket 5s

Setup: Foxwoods WPF 500NL event. Started with 1245. Broke for the day with 20 remaining. Day 2 starts with 2000/4000 blinds and 500 antes. Hero hs 43000 and is the short stack at his table with an M of 4. Avg stack is 90000, chipleaders have 200k. Median chip stack at my table is about 75k. 16th-20th all get the same prize, then it increases at every position.

Hero was above avgerage in chips with 40 players left and lost 2/3rds of chips with JJ against AK. Since then Hero has played 5 pots, all open-pushes preflop and none called. Before then he was probobly seen as being on the tight side.

3rd hand of the day: Hero is UTG+1 and is dealt 5-5. UTG folds. Hero...

Easy push? Fold and wait for slightly better hand to push?

Please give me some input as to your exact thinking here.