Hi
Welcome to the forum!
Floaters in the eye could be a normal finding or a sign of retinal detachment, ophthalmic migraine, a blow or fall on the head or due to some inflammation. In myopia or short sightedness, there is always an impending threat for retinal detachment at very high powers. If you sight is not good, then your number could have changed. Also there are chances you have developed glaucoma. Headaches are due to poor sight. Please consult an eye specialist for this ASAP.
It could also be a case of ‘ocular migraines’ or ‘ophthalmic migraines’. These produce headaches along with visual symptoms ranging from static vision to temporary loss of vision. Please discuss this possibility with your doctor. Normally, ophthalmic migraines do not require treatment. But if these symptoms recur regularly then you may need medication to reduce the frequency and/or severity of attacks.
The red dots that you mention may not be related to your eye problem. These could be petechiae. Generally they are harmless and appear and disappear. The commonest pathological cause of petechiae is a low platelet count (thrombocytopenia).
They can also result from autoimmune disorders, such as lupus or rheumatoid arthritis, bone marrow disorders such as leukemia, inflammation of the veins, as a side effect of certain medications including the vaccine itself, viral infections, such as EBV and septicemia or infection in blood. A complete blood count, urine examination and a blood culture may be required to reach a diagnosis. Consult your PCP regarding this. Do not panic that it is leukemia or something equally serious. However do not ignore it either.
It is difficult to comment beyond this at this stage. Please let me know if there is any thing else and do keep me posted. Take care!
Souds like it could be Multiple Sclerosis?
Look it up and get it checked out pal