I think your overwhelming.with minor discomforts.
Pressure you experiencing is likely caused by nasal congestion or due to misaligned sleep which usually goes away by self and usually no treatment is needed.
Stop taking decongestant drops in excessive amounts as it can have side effects, almost everyone experience some sort of congested nose all time and are ignored most of the time.
Your symptoms do NOT suggest optic neuritis. Not at all. See an ENT. Often those symptoms can be a sign of nose drops overuse OR dry nasal mucosa and the use of over the counter nasal saline sprays 4-6 time/day can make a dynamic improvement
'JCH MD