And you have been scanning for software problems.
If this machine is a few years old, it may be time to check repair costs or replacements.
Starting about a month ago I noticed my computer's brightness would change on its own and I could not control it's random flickering from light to darker. I thought it was possibly the power cord coming disconnected but the charging icon on my screen remained lit and present. Now in the last 2 days the flickering has become more frequent and the charging symbol on screen flickers with the brightness change. I bought a new power cord and the same problem persisted. Looking inside the power jack nothing looks discolored or smells burnt. I have Macfee and have done 2 full scans finding no threats. I have also done a full Malwarebytes scan, again with no threats found.
I am not great with computer terminology but would really like to try fixing this issue on my own before taking my computer in. I would be very appreciative if someone could give me some advice! thank you in advance