Hold on, do not leave in haste
I have had a similar situation, I was out for a month due to Chikungunya
When I came back, none of my work had been touched. All deadlines are still to be met, and all files are to be made.
I am working till 9am-10 pm every day of the week, 6 days. Commuting for 3 hours on that
I did finish all the work on time, and gave my papers (about 20 days later)
They didn’t accept. I shared all these with boss' boss, not pinpointing but saying the environment created was shit.
Things improved drastically well after that.