Floaters are usually nonpathological.please learn to omit them and since your retina is ok hence you need not to worry.
Since you are a regular computer user hence you are likely to develop computer vision syndrome due to which also you are likely to experience such symptoms.
Please put some lubricant eye drops eg teardrops 3to 4times daily and ocupol.dx eye oint to be rubbed twice daily on lids
Next Steps
Follow some precautions eg
follow 20.20.formula ie close your eyes for 20.seconds after every 20.minutes. keep proper distance between eyes and screen ie approx 20.inches.wash your eyes frequently with fresh water and don't sit facing the ac or blowers and consume lot of fresh fruits and vegetables and antioxidants cap once daily