Hello, you seem to be having some degree of recent memory impairment. The cause for memory loss can be many. It may be because of
vitamin deficiency,
thyroid problems which are reversible causes for memory loss. Since your routine activities are not impaired, it's unlikely you have any major problems in the brain. Some people who are stressed might also experience some memory loss which might be a part of depression.
Next Steps
I suggest you see your physician and rule out the causes for reversible causes of memory impairment. Once all the blood tests are normal and all organic causes are ruled out, please see a psychiatrist to check for any psychological causes.