If I were you, I'd get together all the medical documentation you having showing why you were off work so much. If you showed your boss why you were off, but that you are getting ahead of whatever medical problem has come up that's made it so you couldn't work during the past year, then maybe they'd rescind their decision.
All jobs come with conditions. Most have for example the right to dismiss without any reason whatsoever for the first 12 months of employment. After that there are still certain conditions that must be met. If you agreed to these terms when you were hired (you would have signed the agreement), then I'm afraid that there might not be much more you can do other than find another place where they'll see all you have to offer, but that won't hold against you the bad luck you had with your health this past year. With national unemployment over 17% (according to USA Today), it's an employers market right now.
Maybe it would be best if you just got your health back first so you won't have to worry about this again on your next job? Best of luck, Bob.
After an accident in 1997 crushed the nerves in my pelvis, halfway down the calf and at the fibular head (knee), my left leg slowly started to turn color from the foot up, along with swelling and temp change. Within 2 weeks I was diagnosed with RSD. By 1999 I landed in a wheelchair and started a life taking narcotics all the time. In 2004 I got an Intrathecal morphine pump &5 years ago the RSD spread to my right leg and has done around 80% of the damage it did to my left leg in half the time. 1 1/2 years ago I went septic, and the infection did go body-wide. After 2 days in the hospital I then had a clot in my lungs. Both should have killed me, but this time I got lucky. Meanwhile I've been battling blood clots for the last 4 years. A year ago my left leg was ampuated above the knee after ging septic. Guess that about say's it all. Bob.