RA AND self-employed

Hi, looking for advise out there. I’m waiting to be seen by by the specialist to determine if I have RA. Experiencing Biceps tendinitis pain and bloods came back With strong rheumatoid factors and ANAs. I’ve fairly recently went into self employment and have no income protection plan set up….help! I’m totally freaking out and feel really stupid and guilty that I’m not going to get any real help with income
if I can’t work!