FBflex and a little extra Hiit - feeling strong today ☺️

Not sure if it's the frustration coming out after an awful day at work, or the fact that this programme really is working, but I felt great doing today's flex workout and even had some extra energy for some hiit. Honestly I've never really enjoyed this bored easily one before but guess I was just never lifting heavy enough ! Arms are toasted ☺️ I just can't get enough of upper body strength at the moment!