Demetrius "Lil Meech" Flenory Jr. was recently spotted hanging out with Rick Ross and Floyd Mayweather amid his ongoing feud ...

Cent has been backing down both Big and Lil Meech on Instagram for days now ... but we're hearing his ex-'BMF' leading man ...

Check this part out. 50 also shared a concerning incident on set, where Lil Meech appeared to be struggling with his health. ...