Is it possible to have astigmatism last month and not have it now?

i had my glasses made last month, so the optalmologist(is that what they call it?) tested my eyes. it showed i have astigmatism in both eyes. then i had another pair of glasses made just now on a different eye center. the optalmologist working there tested my eyes and it showed i don't have astigmatism now. is it possible? i'm quite skeptical about it. because i've had had astigmatism for 2 years and the first optalmologist told me that my eyes are unlikely to go back to the normal vision. i kept telling her about my astigmatism but she insists that the first optalmologist is wrong. she's annoying. the optalmologist who tested me last year told me though that i have astigmatism in the right eye. is it okay to wear glasses w/ different grades simultaneously? i still want to wear the glasses i bought last month. is it okay? or will it destroy my eyes? can astigmatism get worse if i wear glasses without grades for astigmatism(in case i really do have astigmatism)?

if it's astigmatism from the lens may be it will goes , but corneal one will not change .
so now you have 2 says yes and one says no , can I suggest a forth opinion , or go with the one that says no

Yes, it is possible for astigmatism to go away.

yes, it can come and go, mostly based on the hydration of the crystalline lens at the time of the measurement.

corneal astigmatism doesnt usually change much, but lenticular astigmatism frequently changes a little...