I have sunken and hollow eyes after eyelid surgery and also eye bag removal. Is this normal?

Fat removal during blepharoplasty can leave the eyes more hollow. It is also possible that you had hollow eyes to begin with and it became more obvious after removal of skin.  That requires adding volume around the eyes to achieve more youthful appearance. That can be accomplished by fat or filler injection (or combination). See an oculoplastic surgeon.

this is a known result of lower eyelid surgery. Without photos it is very difficult to comment and it depends on whether fat was removed or reposition and the approach - external incision or transconjunctival. Time usually improves hollowness otherwise replacing volume with fat or filler is a possibility. Condiseration should also be given to your mid face. A lot of patients I see concerned about their lower lids actually need a mid facelift to support their infraorbital volume.