Why is Aetna taking so long to review my claim?

I was diagnosed with MS in 2013 at the age of 42. I was placed on short term disability and then placed on LTD for 18 months. I was placed in the hospital on March of 2016 for 2 days. Iam currently receiving occupational therapy and physical therapy twice a week. I’ve been released recently from pt but still in ot because my dominant hand is in constant pain. My claim is now up for review and per my letter their suppose to let me know if I’m reapproved or disapproved on the 11th of June. My Neurologist has requested for me not to return to work because of the tremors and pain in my dominant hand. My cognitive ability is very poor and after pt is complete I’m to go to Speech. They told me if I get all my paperwork in on time i can have an answer relatively quick. my claim his been in review for awhile and June 11 is over the weekend. Why is it taking so long and I was told that there probably trying to find a loophole to deny me. What are your thoughts? I can’t use my hand do to the pain and weakness.