Sickness insurance

[MissyMila]

Hi everyone
I am stuck in the online form for applying for the permanent residency in the U.K. because they ask me to provide the sickness insurance that I don't have.
I move in the U.K. In 2011 and I always have worked but, in 2015 I had decided to change my job and to improve my opportunities so I studied to become a teaching assistant a quick course of 4 months that I have done while I was working part time and then a month course to get functional skills in English.
Because I add these courses now they ask me to produce this sickness insurance and if I don't have my request for the permanent residency can be refused.
Do you think it's possible? Should I send it anyway and add a note explaining my situation, at the end of the day they were two quick courses government funded and not university.
Thank you very much In advance
Full of hope expat In love with the U.K.

[too old]

if YOU WERE working during that study period could you use that as a qualifying period