PET Scan's and now Bob is Tongue Tied...

Well it has been a while since I have written..alot going on. Bob continues to have problems eating as he is still having more teeth removed...he was at the Dr Tuesday and was told he is tognue tied and will need Surgery for this..he also need surgery to replace Jaw bone and Sinus issues...he needs a Sinus uplift..all due to the Radiation. He still blends his food and choughs all the time when he swallow. I am very upset that our Inurance Company refuses to pay for a PET Scan when he has only been Cancer free for a little over a year. They will do a CT Scan....this troubles me alot. He had Ct Scans and MRI's before DX and nothing showed up...I know a gal who had Cancer in the 90's and she still get's PET Scans every 6 month's, but she is on Minnesota Care which is for Low Income people, it just seems wrong the working poor middle class can't get the same care as lower income people can when we pay alot for our Insurance...I am all for Low Income folks getting Medical care and good care, but this is why I am troubled that Blue Cross Blue Shield of Texas refused to even pay for Bob's feeding Tube food when he could not swallow anything! He would have died and we are still struggling to pay all the bill's from everything and a 10 thousand dollar bill for the Feeding Tube food...I thought it was still in Appeals but now we have a collection Agency calling and the woman even said how can they NOT pay for his food when he would not have been able to sustain life without it...then his ENT Dr wrote a letter several month's ago stating his problems with his teeth etc all stemmed from Cancer and should be covered under our Medical Insurance not Dental...still no word...it is just so frustrating all people have to go thru having to have Chemo/Radiation etc..and then fight to get the Insurance Company to pay on any Bill..Praying things will all be ok, it is a daily struggle as I am Disabled and work 14 hours a week and Bob is still working p/t but enough that we no longer have to pay COBRA..that was almost 1900.00 a month for the 2 of us...I do not know how we got thru that...but we did. I guess I am sounding like a downer, but somehow thing's will work out they usually do...they finally gave Bob 20 Vicodin after they removed more teeth,they never give him anything for pain after extraction's..maybe because he is having his Dental work done at the Dental School at the U of MN...Any input on how long people get PET Scans after being clear and for how long? I amy be over reacting but I worry if it comes back and they don't detect it...