Serious Spider Trouble!!!???

Hey everyone. I have had my Rose Hair Tarantula for almost 7 years now. She has only molted 3 times, and as of late she refuses to eat the crickets I buy her. The last time Im positive she ate was almost 2 months ago!!! Im worried she could be sick or there is something else wrong. If anyone can help please let me know!!! Im really stressed and want some advice.