Dimming Lights with Spiking Voltages in House

Need some advice folks. For the past 6 months, the lights flicker and dim in our house...appliances slow down and struggle, window AC units almost stall, and sometimes it sticks that way for 10 minutes at a time. Put a meter in my 110V outlets and found out that when the browning/dimming is happening, it reals 145V! Then when everything gets bright and normal again, it reads 125V. Just the opposite of what I would expect. Its an old house with old wiring and an old panel box still on the outside of the house. Last electrical update I know of was done 35+ years ago. Could it be the box? I dont see how the voltage can go UP unless there is some bleeding from the 220 side? I dont know much about electricity, so I need some advice. Thanks.

P.S.

I did have an electrician check it out some months ago, and he updated a bar or contact or something in the box, and we thought that fixed it, but it didnt.