To ask if this is possible

[MyMindIsAJungle]

By age 35?
A female having

1. Lupus
2. Crohns
3. Breast cancer

1. Yes
2. Yes
3. Yes

See a doctor.

Didn't mean that to sound mean - but yes, those are all possible at your age. See a doctor!

Most definitely

Yes, sorry! What Sonny said. Hope you are ok!

Highly unlikely to have all 3. First 2 absolutely but to have all 3 by 35 would be very rare.
That's not to say it cannot happen though and obviously any concerns should be checked out but as I say, you would be extremely unlucky to have all 3 diseases by that age.