You need to expand your reading, if you were unaware to how often Obama either criticized or undermined Trump. Some of the emerging FBI documents are particularly concerning. Invest some time in reading them.

I am not defending Trump or attacking him in his thread, I am stating that every citizen in this country including ex Presidents have the legal right to free speech... period.

I am also suggesting that ex Presidents in my lifetime other than Clinton, Obama and now Trump have traditionally avoided using their free speech rights to criticize sitting Presidents.

Anyway, here is some examples of Obama's comments and actions while Trump was the sitting President.

https://www.cnn.com/2020/10/21/politics/obama-philadelphia-speech-biden-harris-trump/index.html

https://nypost.com/2017/02/11/how-obama-is-scheming-to-sabotage-trumps-presidency/

As for you being sick, sick, sick, etc. Let me suggest you see a doctor, they treat sick people... maybe they can help you.