I can't tell exactly without looking at your wheel, but it sounds similar. There was a lot of play, sideways and on the freewheel. When I took everything off, i noticed the axle was bent and the cones should have been tighter. When I took the freewheel off, I realised there was play in the ratchet inside the freewheel (20 year old hub, not too surprised on reflection).
I originally thought the whole thing was knackered, but when I replaced the axle and drivetrain, it was working properly again. You can't really tell without having a look, best thing to do is dismantle it
I can't tell exactly without looking at your wheel, but it sounds similar. There was a lot of play, sideways and on the freewheel. When I took everything off, i noticed the axle was bent and the cones should have been tighter. When I took the freewheel off, I realised there was play in the ratchet inside the freewheel (20 year old hub, not too surprised on reflection).
I originally thought the whole thing was knackered, but when I replaced the axle and drivetrain, it was working properly again. You can't really tell without having a look, best thing to do is dismantle it
hope this helps