Hi Jeid
Welcome to NeuroTalk

.
I have no direct experience of MG but do know about immunology.
The eye weaknesses you have described fit with MG.
MG is an autoimmune disease. What this means is that people with it make antibodies against proteins which are found at neuromuscular junctions. This can lead to eye problems like yours. Two neuromuscular junction proteins called AChR and MuSK have been implicated in this.
The information in this site may help you.
Myasthenia gravis - Better Health Channel
All the best.