Possible symptoms of long term mask wearing?

Ya, it turns out not getting enough oxygen, getting too much CO2, having a petri dish strapped to your face, and not being able to connect with other humans are issues...

• Headaches Associated With Personal Protective Equipment - A Cross-Sectional Study Among Frontline Healthcare Workers During COVID-19: "Out of 158 respondents, 128 (81.0%) respondents developed de novo PPE-associated headaches. A pre-existing primary headache diagnosis (OR = 4.20, 95% CI 1.48-15.40; P = .030) and combined PPE usage for >4 hours per day (OR 3.91, 95% CI 1.35-11.31; P = .012) were independently associated with de novo PPE-associated headaches. Since COVID-19 outbreak, 42/46 (91.3%) of respondents with pre-existing headache diagnosis either "agreed" or "strongly agreed" that the increased PPE usage had affected the control of their background headaches, which affected their level of work performance."
• Corona children studies "Co-Ki": First results of a Germany-wide registry on mouth and nose covering (mask) in children: "The average wearing time of the mask was 270 minutes per day. Impairments caused by wearing the mask were reported by 68% of the parents. These included irritability (60%), headache (53%), difficulty concentrating (50%), less happiness (49%), reluctance to go to school/kindergarten (44%), malaise (42%) impaired learning (38%) and drowsiness or fatigue (37%)."
• Face coverings for covid-19: from medical intervention to social practice: "In an inquiry among Belgian students wearing mouthmasks for one week, 16 % reported skinproblems and 7 % sinusitis, Also problems with eyes and headaches and fatigue were frequently mentioned. Furthermore, face masking can provoke an increase in stress hormones with a negative impact on immune resilience in the long term. Facemasks prevent the mirroring of facial expressions, a process that facilitates empathetic connections and trust between pupills and teachers. This potentially leads to a significant increase in socio-psychological stress."
• Friable Mask Particulate and Lung Vulnerability: "When partial airway obstruction, i.e. masking, is added, deeper and more forceful breathing occurs. When this phenomenon is combined with the particles found herein on microscopic examination of the face side of newly unpackaged, never worn masks, there can arise the risk of a dangerous level of foreign material entering lung tissue. Furthermore, worn masks can only either lose these particles to lodge in the lungs of the wearer, or they would accumulate during use, to the burden (both biological and debris) of non-mask material carried on the inside of the mask."
• Face Masks Pose Serious Risks To The Healthy by Dr. Russell Blaylock
• Washington Examiner: Dentists say 'mask mouth' can cause serious health complications, including strokes

Just a few that I know, and can pull up easily...

This doesn't even go into the conversation that masks serve no purpose in stopping viral spread. Well, as much purpose as a chain-link fence does in stopping a handful of sand thrown through it.

Masks are, and always were, 100% about control, obedience, and virtue signalling. As Fauci said "When you're in the middle of an outbreak, wearing a mask might make people feel a little bit better, and it might even block a droplet, but it's not providing the perfect protection that people think that it is, and often there are unintended consequences."