Ok... here is my update.
I am sure the issue is that php.ini file. I have changed things to this:
memory_limit = 256M
upload_max_filesize = 200M
post_max_size = 250M
however, when I restart apache2, the changes don't reflect in phpinfo(), even though they are clearly in the php.ini file, saved.
I don't know if it is because there is a typo preventing the code to change, or if more coding in the terminal is needed. I've googled all afternoon, but I feel like I am close to the solution.
My latest phpinfo() file is posted here, though it seems no different than the last one I posted... :