If you are non-exempt, then they have no legal obligation to pay you for time you did not work. However, you must be paid for each hour that you actually worked and overtime if you work over 40 hours in a week. I understand that your standard schedule is for 35 hours. That does not affect when overtime is due. Sick time and other forms of paid leave do not count towards overtime calculations.
IF you have been paid for every hour you actually worked and OT for hours over 40 in a week, you have been paid legally. If you have not, then your recourse is to file a wage complaint with the state DOL. Please note that they have no legal obligation to pay you for any sick time you may have taken unless a legally binding and enforceable contract specifically says that they do.

