Can you check my grammar please?

Question:

i want to say "I think that I'm having headaches because I havent been wearing my glasses recently."

saikin watashi no megane wo kakemasen kara, atama ga itaito omoimasu.

also how do i say, "if it gets worse"?

i want to say, "if it gets worse, isha ni soudanshimasu."

thank you very much!

Answer:

1. "I think that I'm having headaches because I haven't been wearing my glasses recently."

I would say;
"saikin atamaga itai no desuga, megane o kakete nai sei kamo shiremasen."

- you don't need to say "my" glasses.
- "sei" can be used if something brings you a negative result
- ".... to omoimasu" doesn't really fit in this sentense.

2. "if it gets worse, isha ni soudanshimasu."
I'd say: "hidoku naru you nara, byouin (or ganka = eye clinic) ni ikimasu."

- "isha ni soudanshimasu" is OK.
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