I'm 6 months post op endo browlift, and suffering dry eye, tightness, pulling of forehead & scalp. Is this normal?

It sounds like you are just taking longer than normal to heal.  If the brow height is good and you can close your eyes, you should probably wait longer.  With time the tightness will get better, and the pulling sensation should relax.  If you go back in now, it will be like starting over. You may get some drop of the brow but it may look too low.  The swelling from another surgery will interfere with eyelid closure for a few weeks.  The pain indicates you still have some inflammation and the numbness indicates the nerve hasn't completely regenerated  yet.  

Did you ever have your upper lids operated on before your endobrow?If so you may have an upper lid skin shortage and your body is fighting the endbrow(lift) to ensure your eyes close, preserving a healthy eye and vision.Sight unseen, you need the endobrow reversed or a skin graft/release to lengthen the upper eyelid.Hope this helps.

After 4 postings and 6 months post op your issues are slightly better. Why did you not go and have the endolift released or reversed???