I Have This Strange Indentation in my Thigh That Appeared Yesterday Evening I Have Cramping Too?

Thank you for your question. Skin changes after fat transfer are predominantly beneficial.  The restoration of volume typically corrects deep grooves, scars, and restores youthful volume.  Due to the presence of stem cells in transferred fat, there have been anecdotal reports of...

 I would recommend to liposuction that fat blob from a peripheral incision.  This can be done very precisely in a few seconds.

Yes, fat transfer can successfully be used to replenish certain areas of fat deficit.  I would suggest for best result, allow the scar tissue from the previous liposuction to soften and resolve for at least 6 months after SmartLipo for better outcome.