I was in a similar situation for the month of December. I missed a 3-day trip in the middle of the month due to a head cold. I then proceeded to come down with a terrible stomach virus at the end of the month, which happened to be the same time I was scheduled for RFT and RLOFT the next day. I decided to try to make it through the RFT with little success. I called in sick for my RLOFT as well as my 2-day that followed. Called in sick a total of 3 times during December, and haven't heard a thing. By the way, I work for the same airline as you and I am on the same aircraft. Everybody in the training department is very understanding, and will back you no matter what if the issue starts to arise.
Also, talk to Gita about it. She is very understanding when it comes down to being sick during training. Hope this helps you out!