ok i really need help here i took the front wheels off my 120y to check how much there was left on the disk brakes then put the wheels back on and tightened the nuts now when i drive the ride is really bumpy theres a durg durg durg durg noise coming from both wheels and when i use my brake theres that noise again very loud and very fast its the same with going around corners

im not sure what ive done wrong but if anyone has any ideas on whats wrong and can offer some info to help please do

There's only one thing to do: remove the wheel and look ... you will probably spot the problem ...

didn;t put the wheels nuts on backwards?

mate check your thread and make sure all nuts are done up evenly, its possible that you may have damaged the hole your bolt goes through and this is causing an imbalance, hence the chug chug chug noise.
ty