38+4 and feeling Exhausted

I had a sweep at 38+2 at the hospitals recommendation and since then I have been feeling absolutely exhausted and just really 'off'. Up until then I had been feeling great and keeping active now I can hardly handle anything! So emotional and tired all the time! I have had some period like cramping but nothing that's enough to make me think the sweep worked. Any ideas? Could this just be because baby is due soon? I don't even know what I'm asking really 😂 maybe this is just a bit of a vent.